Where is the Xiaomi Proximity Sensor

Table of Contents

To calibrate, type on the keyboard # # MIUI # # It can be completely disabled in the phone settings (“Contacts”. “Settings”. “Incoming call settings”. “Proximity sensor).

How to disable the proximity sensor on Android?

  • Turn on your smartphone, go to “Settings”. “System Application”;
  • Scroll the application menu to the item “Phone”;
  • Select the item “Incoming calls”;
  • Disable the proximity sensor (uncheck Turn off the screen automatically when you put the phone to your ear during a call) in this menu.

Turning off the lock in your :

Please note that the Lock feature is not available on all Xiaomi models or is located in a different location. As a rule, these are older versions of smartphones. For example, on Xiaomi Redmi 3, Xiaomi Redmi 4 and Xiaomi Redmi 5 models, the path to this option will be different.

Calibration is a rather serious process that requires utmost care, as it is carried out through the engineering and main menus, that is, you will deal directly with the hardware.

First, let’s check if the sensor works:

  • First you need to call the engineering menu. This is done as follows: in dialing a phone number (Phone application), enter the following combination: ##6484##. After that, the following functionality appears on the screen:

Xiaomi Proximity Sensor. Calibration

  • A test will appear on the screen, during which, when the finger is close to the screen (to the speaker), there will be a corresponding inscription: Close, and at a distance. Far. If you see this, then everything is in order. You can start calibrating. Otherwise, contact the service center.

Calibration is the same for all models: Xiaomi Mi 6, Xiaomi Redmi 3, Xiaomi Redmi Note 4, Xiaomi Redmi Note 5, Xiaomi Redmi 4x, etc.

  • Turn off your phone;
  • Now you need to call the Main Menu. To do this, simultaneously hold down the volume up and power buttons. After the vibrating signal, release the power button, but keep holding the volume key until the Xiaomi logo appears.
  • If the opened functionality is in Chinese, translate it into English. press the 中文 button, located to the right of the download button.

Xiaomi proximity sensor. instructions

  • Next, click on Proximity Sensor.
  • Place the gadget horizontally, putting it on something flat, it is also worth opening it completely, cleaning it, ridding the sensor of bright light.
  • To start calibration, press the Calibration key.
  • At the end of the process, Successfully will appear, and then you will be prompted to check the sensor.
  • Exit the menu and turn on the phone.

As practice shows, work should be restored.

The proximity (light) sensor on Xiaomi is responsible for automatically adjusting the brightness, as well as turning off the display during a call. A failure in its operation can cause a lot of inconvenience, for example, the display may stop turning off during calls, which will lead to accidental clicks, as well as increased battery consumption. The issue can be resolved by calibrating the proximity sensor.

The reasons for failures can be different, so the first thing to do is restart Xiaomi. If this does not help, then let’s look at the options for solving the problem from the simplest to the most complex:

Is the sensor turned on??

Check first if the sensor is on. To do this, open the Phone application and hold down the left touch key in the form of three horizontal stripes. In the menu that opens, go to Incoming calls Turn off the screen during a call (proximity sensor). Depending on the smartphone model and MIUI version, the names of the menu items may differ slightly.

Turning off the lock feature

Activating this feature is one of the causes of sensor failures. Again, it can turn off in different ways on different models. First of all, look in the menu Incoming calls

If you do not have such an item, then go to Settings Lock screen and fingerprint Advanced settings mode and turn it off.

Removing physical obstacles

Another reason for sensor failures is a non-original protective glass or film on the screen. The sensor itself is located next to the front camera and earpiece. There should be a hole in this place, if not, then you need to change the film or cut it yourself.

Proximity Sensor Calibration

If the above methods did not help, you should calibrate the proximity sensor, but first check if it works at all. To do this, call the engineering menu. In dialing mode, enter ##6484## or ##4636## and see the following picture:

Here we are interested in the Single item Test item, open it and look for the Proximity Sensor item in a new window

A test will open where, when the sensor is covered with a finger, the inscription Close should appear. If you remove your finger, the inscription Far will appear. If the sensor does not respond, you need to take the smartphone to a service center, and if everything is in order, you can proceed with the calibration.

  • Turning off the smartphone.
  • Hold down the Volume Up Power button and wait for the vibration, after which the keys can be released.
  • A menu will open, which is likely to be entirely in Chinese. To change it to English, press the 中文 button.
  • Next, click PCBA test and in the new window we are interested in the item Proximity sensor.
  • Lay the smartphone horizontally on a flat surface. The light sensor must not be covered or dirty. Also, make sure it is not exposed to bright light.
  • Click Calibration to start calibration. Upon completion, you will see the inscription Successfully.

After the process is completed, you will need to check the sensor for operability. We cover it with a finger or an opaque object: if the number 1 on the screen has changed to 0, then everything is in order. Now click on the Pass item to return to the engineering menu, and then Finish, after which the smartphone will turn off.

Turn on the device again and check the operation of the sensor by bringing the phone to your ear during a call. the display should turn off.

If the calibration did not help

There are times when calibration does not help. The reasons may be as follows:

  • Problems with the firmware, for the correction of which it is worth reflashing the device
  • Perhaps after the repair the display was replaced with a non-original one.
  • Banal marriage. in this case, you are on the road to a service center or to the seller

For clarity, we recommend to look

The proximity (light) sensor on Xiaomi is responsible for automatically adjusting the brightness, as well as turning off the display during a call. A failure in its operation can cause a lot of inconvenience, for example, the display may stop turning off during calls, which will lead to accidental clicks, as well as increased battery consumption. The issue can be resolved by calibrating the proximity sensor.

The reasons for failures can be different, so the first thing to do is restart Xiaomi. If this does not help, then let’s look at the options for solving the problem from the simplest to the most complex:

Is the sensor turned on??

Check first if the sensor is on. To do this, open the Phone application and hold down the left touch key in the form of three horizontal stripes. In the menu that opens, go to Incoming calls Turn off the screen during a call (proximity sensor). Depending on the smartphone model and MIUI version, the names of the menu items may differ slightly.

Turning off the lock feature

Activating this feature is one of the causes of sensor failures. Again, it can turn off in different ways on different models. First of all, look in the menu Incoming calls

If you do not have such an item, then go to Settings Lock screen and fingerprint Advanced settings mode and turn it off.

Removing physical obstacles

Another reason for sensor failures is a non-original protective glass or film on the screen. The sensor itself is located next to the front camera and earpiece. There should be a hole in this place, if not, then you need to change the film or cut it yourself.

Each smartphone consists of dozens of parts, sensors and elements that are responsible for various functions of the device. One of these parts is the proximity sensor. Often people are faced with a violation of its work: the sensor is buggy, does not work, or has stopped working altogether. What to do in these and other situations, you will learn from this article.

The proximity sensor or, as it is also called, the light sensor is responsible for the approach, or rather for turning off the screen during a telephone conversation and for adjusting the brightness level.

Sometimes the question comes: Where is the proximity sensor? In fact, the word sensor is rather arbitrary, denoting the presence of a special sensor in the design of the device next to the front camera and earpiece.

Disruption of this function has many inconveniences. For example, during a conversation, you can accidentally press unwanted buttons or even drop the call altogether. If the proximity sensor does not work, the phone, while in your. may involuntarily perform any actions or call someone, guided by the touch of the screen on clothes.

Sensor calibration

Another rare but existing cause of sensor failures can be sensor failures. To fix this, you can also do a calibration, which is much easier and faster than the previous one.

It is recommended to remove protective glasses and films during calibration

  • Call the engineering menu as described above;
  • Find the TouchPanel feature;
  • The smartphone will offer instructions that you should follow by swiping your fingers across the screen;
  • At the end of the work, you will receive a notification;

Xiaomi Proximity Sensor

For this, use special applications that are available in the Play Market: Display Calibration, TouchScreen Calibration, etc.

Causes of problems

Speaking about the appearance of a sensor problem, you can identify some cases that are conducive to malfunctions. The main part refers to the settings inside the phone.

  • The sensor function is disabled;
  • Activation of unnecessary options;
  • Incorrect film or protective glass. Operation may be impaired if there is no special hole on the glass or film for the speaker or front camera. In such a situation, you just need to change the protective material.
  • Incorrect operation of the device itself. Only in this case it is necessary to calibrate the sensor

Now let’s look at each case separately.

Calibration is a rather serious process that requires utmost care, since it is carried out through the engineering and main menus, that is, you will deal directly with the hardware.

First, let’s check if the sensor works:

  • First you need to call the engineering menu. This is done as follows: in dialing a phone number (the “Phone” application), enter the following combination: “##6484##”. After that, the following functionality appears on the screen:
  • Select “Single item Test”, then. “Proximity Sensor”;
  • A test will appear on the screen, during which, when the finger is close to the screen (to the speaker), there will be a corresponding inscription: “Close”, and at a distance. “Far”. If you see this, then everything is in order. You can start calibrating. Otherwise, contact the service center.

Calibration is the same for all models: Xiaomi Mi 6, Xiaomi Redmi 3, Xiaomi Redmi Note 4, Xiaomi Redmi Note 5, Xiaomi Redmi 4x, etc.

  • Turn off your phone;
  • Now you need to call the Main Menu. To do this, simultaneously hold down the volume up and power buttons. After the vibrating signal, release the power button, but keep holding the volume key until the Xiaomi logo appears.
  • If the opened functionality is in Chinese, translate it into English. click the “中文” button located to the right of the “download” key.
  • To open the engineering menu, press the topmost button;
  • Next, click on “Proximity Sensor”.
  • Place the gadget horizontally, putting it on something flat, it is also worth opening it completely, cleaning it, ridding the sensor of bright light.
  • To start calibration, press the “Calibration” key.
  • At the end of the process, “Successfully” will appear, and then you will be prompted to check the sensor.
  • Exit the menu and turn on the phone.

As practice shows, work should be restored.

Turning off the lock in your :

Please note that the ” Lock” feature is not present on all Xiaomi models or is located in a different location. As a rule, these are older versions of smartphones. For example, on Xiaomi Redmi 3, Xiaomi Redmi 4 and Xiaomi Redmi 5 models, the path to this option will be different.

  • Go to the “Phone” application and open the menu located at the top right (three dots);
  • Click on the “Settings” field, then you will be taken to the call settings, where you need to scroll down the page and find the “Incoming calls” section. go there;

You can also adjust the operation of the sensor by disabling an unnecessary function. blocking in your

Each smartphone consists of dozens of parts, sensors and elements that are responsible for various functions of the device. One of these parts is the proximity sensor. Often people are faced with a violation of its work: the sensor is buggy, does not work, or has stopped working altogether. What to do in these and other situations, you will learn from this article.

The proximity sensor or, as it is also called, the light sensor is responsible for the approach, or rather for turning off the screen during a telephone conversation and for adjusting the brightness level.

Sometimes the question comes: “Where is the proximity sensor?”. In fact, the word “sensor” is rather arbitrary, denoting the presence of a special sensor in the design of the device next to the front camera and earpiece.

Disruption of this function has many inconveniences. For example, during a conversation, you can accidentally press unwanted buttons or even drop the call altogether. If the proximity sensor does not work, the phone, while in your. may involuntarily perform any actions or call someone, guided by the touch of the screen on clothes.

Sensor calibration

Another rare but existing cause of sensor failures can be sensor failures. To fix this, you can also do a calibration, which is much easier and faster than the previous one.

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It is recommended to remove protective glasses and films during calibration

  • Call the engineering menu as described above;
  • Find the “TouchPanel” function;
  • The smartphone will offer instructions that you should follow by swiping your fingers across the screen;
  • At the end of the work, you will receive a notification;
  • Turn on the device;

For this, use special applications that are available in the Play Market: Display Calibration, TouchScreen Calibration, etc.

Xiaomi proximity sensor: what is it and how to fix the problem on any device

Xiaomi is a popular Chinese smartphone brand that has established itself in the Chinese, Indian markets. The Redmi and Note lines have taken the world by storm. Xiaomi Redmi Note 7, Redmi Note 5, Redmi Note 4, Redmi Note 4A, Redmi 4, Redmi Note 4A, Mi A3 are just some of the popular low-cost smartphones.

Why does not it work

There are many reasons why the proximity sensor on Xiaomi Redmi and other models is buggy. It is not clear if this is a hardware or software issue. Maybe the wrong setting of the Xiaomi proximity sensor.

The sensor may not work in the following cases:

  • The user forgot to remove the temporary transparent protective film covering the touch screen.
  • If a screen protector has been applied to the device, check if it is specifically designed for this model. It is important that this protective film has holes in the right places. The scanner may not work due to the film.
  • Wipe it well.
  • Use a suitable case. The bumper may cover the sensor.

Where is Xiaomi Proximity Sensor located? On the front panel of Xiaomi smartphones there is a display and a camera. It is located above the screen.

In many smartphones, it is enabled by default, there is not even an option to disable / enable it.

To enable it, you need to open the phone settings menu, go to the “Connections” tab. If there is no such parameter, then you can install a special application (for example, Smart Screen On / Off Auto).

The reboot works for almost every minor software glitch or minor issue. This is one of the easiest methods. In this way, you can solve the problem without calibration.

Just press the power button and also reboot your device. This will remove the cache, temporary files, registry, free up most of the clogged, accumulated resources on the phone. But this is only a temporary solution. In order for the sensor to work properly, it is necessary to reboot the system frequently.

Update Firmware

Outdated firmware may affect the operation of the proximity sensor. That is why it is necessary to refresh MIUI in Xiaomi smartphone. So just update the firmware by following the procedure given below.

  • First go to “Settings” “About phone”.
  • Then click “Software Update” or “Updates.
  • Download the file, install according to the instructions.
  • The process may take a couple of minutes.

Troubleshoot

If there is a problem with the proximity scanner, it will be useful to check if it is working or not. Xiaomi smartphones have a hidden feature that allows the user to check different devices, including proximity sensors.

  • Dial # # # in the dialer app on your phone.
  • Find the proximity sensor from the list.
  • Now place your finger on the sensor to check if there is reception or not.
  • If not, then the scanner is faulty.
  • Report the problem to the service center.

Perform a hard reset

This is the last method where the data ever stored in the system will be deleted once and for all, which will also fix various software glitches.

  • Turn off your phone.
  • Press power button, volume up/down button and enter recovery mode.
  • Scroll and tap on “Wipe data/factory reset” and then select “Yes, delete all user data” to initiate a hard reset.
  • The system will reboot to factory settings. If the scanner does not work, please contact your nearest service center and have the problem repaired.

Sensors may disappear soon

Ellipticlabs has developed a method to get rid of the sensors. The Ellipticlabs solution is based on ultrasound. The speaker emits a sound that is not audible to the human ear, is captured by the microphone. If it registers any interference, then the screen will turn off, the user will be able to speak.

According to the manufacturer, the technology has a number of advantages. First of all, it is cheaper than proximity sensors. On one model, this is a small savings, but since companies sell tens of millions of smartphones a year, it makes sense.

The second element is the appearance of the device. It will also increase the working space.

What is a proximity sensor and what is it for?

In this case, we are talking about a small contactless device that recognizes the approach of an object to the smartphone. As a result of the correct operation of this function, the gadget’s display will turn off automatically when you bring the phone to your ear. This will prevent accidental pressing of the touch buttons during a conversation (for example, with your ear, finger or cheek).

In addition, the proximity sensor on Xiaomi allows you to significantly save battery power, because when the screen is on while talking with another subscriber, the battery power is intensively consumed.

Enabling and disabling the proximity sensor on Xiaomi

As a rule, the sensor on Xiaomi devices is active by default. If in your case this is not the case, or this function was somehow disabled by accident, then it will not be difficult to enable it. This is done as follows: go to “Settings”, find the section “System applications”, select the item “Phone”:

Then click “Incoming calls” and move the slider in the “Proximity sensor” line to the active position (on some gadgets you will need to check the box):

Depending on the Xiaomi smartphone model, activation of the sensor will look a little different, for example, by opening the dialing field immediately, we call the call settings menu either with the “Settings” button, or by pressing and holding the hardware options button. And after that, as it was written above, in the “Incoming calls” we turn on the sensor:

If the question is about how to turn off the proximity sensor, then, accordingly, we go the same way and deactivate the function (uncheck).

Using the engineering menu, you can check the correct operation of the sensor, and, if necessary, calibrate it.

To do this, enter the following set of characters in the dialing field: ##3646633## Now open the “Hardware Testing” tab and press the “Sensor” button, select “Light/Proximity Sensor” (light/proximity sensor):

  • Select “PS Data Collection” (collection of proximity sensor data);
  • In the next window, select “Get One Data”;
  • After the number “0” appears, we put our palm on the proximity sensor on our smartphone and press “Get One Data” again;

If as a result we see the number 255, then our sensor is functioning normally.

Select “PS Calibration”, then “Calibration”. After that, without closing the sensor, click on “Calculate min value”. After the inscription “Calculate succeed” appears at the bottom of the display, we bring a sheet of paper to the sensor at a distance of 2-3 centimeters and click on “Calculate Max value”, after which we just have to click “Do Calibration” and restart the smartphone:

How to turn on turn off configure proximity sensor on Xiaomi Redmi

Often, users of Xiaomi mobile devices are faced with the fact that during a call the screen lock does not work, which prevents involuntary pressing on the display. The problem in this case lies in the proximity sensor. There are several reasons for the incorrect operation of this element of the smartphone. Now we will figure out how to enable / disable the proximity sensor on Xiaomi Redmi Go, Note 7 Redmi 8 and 8T, or configure it if necessary.

How to set up (calibrate) the proximity sensor on Xiaomi Redmi

This element is located at the top of the smartphone, usually to the left or right of the front camera lens:

On some Xiaomi models, it can be seen with the naked eye, while on others it is quite difficult to detect. If, during a call, remove the phone from your ear, and then bring your finger closer to the front camera, then the display that goes out after that will tell you the location of the sensor.

It is quite possible that the reason for the incorrect operation of the sensor was an elementary ingress of dust on it. In this case, you can restore the normal operation of the function simply by cleaning the device. turn off the smartphone and blow it with compressed air. Then you need to restart your gadget and check if the sensor has recovered.

If this manipulation did not bring the desired result, then you can resort to sensor calibration, which is performed in several ways.

Using third party software

If all the previous ways to normalize the sensor did not help, then you can use the application “Proximity Sensor Reset” (for rooted devices).

Download and install the app from the Play Store. After starting, activate the large button “Calibrate Sensor”. Now cover the proximity sensor with your hand and click “Next”:

Then you need to remove your hand and press “Next” again, and then “Calibrate” and “Confirm”. At the request of the system, we provide superuser rights (ROOT). After the performed actions, we are waiting for the completion of the reboot of the smartphone.

Now you know how to enable/disable/configure the proximity sensor on Xiaomi. However, if in your case the problem has not been resolved, then it is possible that you will need to calibrate the display or flash the smartphone. In addition, sometimes the sensor may not work correctly due to a hardware failure, then you cannot avoid contacting a service center for help.

  • to optical. They are based on an infrared emitter that determines the distance to an object (in our case, the ear), and when it is near or close to the phone, the screen turns off;
  • ultrasonic. Infrared waves replace acoustic. When registering a reflection from an object at a distance of 1–5 cm, the display goes out. Unlike optical analogues, ultrasonic ones consume less energy.

Proximity sensors are triggered during a conversation through the Phone application and calls in Viber, WhatsApp or Telegram messengers. This is done in order not to touch the included touch screen with your ear.

The trend towards frameless screens has led to the displacement of light and proximity sensors into the cutout of the front camera or earpiece. As a result, the registration of objects has become worse.

How to fix the proximity sensor

Problems with the proximity sensor are solved by:

In the production of Xiaomi smartphones, components from different manufacturers are used, so there are no problems with the sensor in one batch, but there are in the other.

Enable the feature in settings

If turning off the screen does not work during a call, you need to turn on the sensor in the settings.

  • Open the Phone app and click on the “” menu in the bottom left corner. looks like three dots stacked vertically.
  • Tap on “Incoming Calls”. At the bottom of the list, activate the slider opposite “Proximity sensor”. In older versions of the shell, this feature is called “Turn off the screen during a call”.

On Redmi and Xiaomi smartphones with a “dialer” from Google, the location of this item is different.

  • Open “Settings”. Scroll the screen to the “Applications” section, tap on “System Applications”.
  • Here is the “Phone”. open it with one click. Similarly to the previous paragraph, activate the “Proximity Sensor”.

MIUI replaces standard Xiaomi phone with Google solution due to call recording feature.

Mode

The function automatically locks the screen of the smartphone when it is in your It works intermittently, which causes problems with the proximity sensor during calls. How to turn it off:

  • open Settings again. Scroll the page to the “System and devices” section, here open “Lock and protection”;
  • go down to the “Lock screen” subsection, where open “Advanced settings”;
  • at the bottom of the list, opposite ” mode”, move the slider to the inactive position.

When this feature is enabled, the automatic screen lock does not work well: the display flickers or does not turn on after removing the ear from the device.

Screen protection check

Incorrectly glued protective films or glasses cover the sensors, which is why they start to work incorrectly. You can check this in direct sunlight. the sensors must be fully open.

  • those who glued the protection: the film / glass could move;
  • manufacturers of protective accessories. After the start of sales of a smartphone, Chinese small companies may release protection that is not suitable in size or forget about cutouts for sensors. Owners of Redmi Note 8 Pro and Note 9 faced similar issues.

It is recommended to replace the screen protector. It is not recommended to use a book case without a film or glass applied over the display: grains of sand that are between the case and the screen leave scratches due to friction, which even Corning Gorilla Glass cannot cope with.

Verification and calibration

When the tips above do not work, it remains to arrange a sensor test, and then calibrate it.

  • Install and open the Sensor Box for Android app. Check for a Proximity Sensor: if it is damaged or defective, there will be a red icon next to its label.
  • To check the sensor, tap on the image of a flower and cover the sensor with your palm. it should curl up. Remove your hand to unfold the flower.

If nothing happens, try to calibrate the sensor:

  • Turn off the device. hold your finger on the lock button and select “Turn off”.
  • When the screen goes blank, press and hold the volume up and lock keys. A window with the Recovery menu will open. If it’s in Chinese, tap on the rightmost character above the blue touch button.
  • Now select “PCBA test”. From here navigate to “Proxity sensor”.
  • Lay your phone on a flat surface with the screen facing up. Wipe dust off sensors. Now click “Calibration” and wait for the calibration to finish. Successful completion of the setup will be accompanied by the inscription “Successfully”.
  • Reboot the device and test the sensor again.

Alternative Calibration Methods

On some firmware versions, the Recovery menu does not open. In this case, use the MiProxiFix application. It is not on Google Play, so you have to download from third-party sites. After installation:

  • in “Settings” go to the “Applications” section and open “All applications”;
  • find and open the MiProxiFix card. use the search by name;
  • tap on “Other permissions” and check the box next to “Lock screen”;
  • open the program, click “Recalibration”. After agreeing to set up, the screen will turn off for 10-15 seconds, then a notification will appear about successful recalibration.

Do not use this app with internet enabled if you are concerned about the security of your personal data.

Owners of smartphones with MediaTek processors

Who has a single-chip system from MTK installed:

  • open “Settings”, select “About phone” and click “Kernel version” 8 times. This item may be hidden in “All settings”;
  • the FOC Test menu will open. Expand the “” tab on the top right, tap on “Proximity sensor calibration”;
  • press “Calibration” and wait for the calibration to finish.

On smartphones with Snapdragon processors, a menu opens with tests of built-in modules, but without calibration support.

Method one

First, you should use the simplest method, which involves turning the chip on / off. In the event that the problem with the Xiaomi proximity sensor was in software errors, a conflict between applications and the operating system, this method should help.

We go to “Settings”, where we select “Applications”. “System Applications”. Then you need to find the sub-item “Phone” and click on the line “Incoming calls”.

One of the items will be “Proximity Sensor”, which is usually on. You need to turn it off, and after 5-10 seconds turn it on again. At the final stage, you will need to restart your mobile device.

Xiaomi proximity sensor calibration: what is it and how to set up the module?

Many smartphones of the Xiaomi brand have an ultrasonic proximity sensor. Its difference from the optical sensor is that the ultrasonic version reacts to a nearby physical object. In the optical modification, the reaction was only to dimming, which sometimes led to erroneous responses or flaws.

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Mi 11x proximity sensor how to fix & solution

The use of new technology was due to the increase in the usable screen area of ​​the mobile device and, as a result, the need to save space. In rare cases, Redmi series phones have a problem with the chip’s performance. The consequence is its incorrect operation, i.e. display turns on and off.

Method two

We are talking about the calibration of the Xiaomi proximity sensor. Please note that a problem with the module sometimes occurs due to the presence of a protective glass, which reduces the level of its sensitivity. You can check if this is the case by removing the protective glass and bringing the smartphone to your ear. If the display turns off automatically, then a solution has been found.

If the error persists, Xiaomi proximity sensor calibration will be required. To do this, you need to go to the engineering menu: select the “Settings” menu with the “About phone” items. “All settings”. “kernel version”. Tap on this line 8 times in a row, which will launch the engineering menu. Please note that here you can calibrate the compass, light sensor and other modules.

After the appearance of a new screen, you need to find an image in the form of three dots in the upper right part. Click on it and click on the context menu “Proximity sensor calibration”.

Please note that the sensor is located near the front camera, so the palm must be brought to its module. Bring your hand as close to the front camera as possible, and then you should see the screen darken. When you remove your palm, the brightness should return to the initial level again. Raise your hand at least 5 times.

After that, information in lux about the degree of ambient illumination should appear. If the numbers are expressed in zeros, then this indicates a physical failure of the module. Accordingly, you should contact the service center to repair the device.

Proximity sensor calibration on Xiaomi (Redmi) of two types: optical and ultrasonic

All Xiaomi (Redmi) phones have a proximity sensor that tells MIUI to turn off the screen backlight and touch screen at the moment when you bring the smartphone to your ear for a phone conversation.

If it were not there, during negotiations with your cheek, you would constantly click on random commands on the display and launch unknown processes with an unexpected result.

Xiaomi currently uses two types of proximity sensors:

They perform the same function. they determine how far an obstacle is from the smartphone, which supposedly should be a person’s head, but they do it in different ways.

How to Enable or Disable Proximity Sensor in Redmi Note 7 Pro(MIUI 11.0)?

Optical sensors determine the approximation by the degree of attenuation of light falling on the sensitive sensor substrate.

Ultrasonic determines the head by the degree of reflection of the sound it generates.

I will show how to calibrate both types of sensors, for example I will use Xiaomi Mi 5 (optical sensor) and Mi 9 SE (ultrasonic sensor).

But before we move on to calibration, perform a simple procedure that will save us half the time from this procedure.

Enter the settings, find the “Applications” menu. Now select the “System Applications” line. Find “Phone” in the list. Click on the “Incoming Calls” menu. Find the “Proximity sensor” switch, turn it off, and then restart your smartphone. Come back here and turn it on by rebooting the device again. In half the cases, this returns the sensor functionality to working mode without the need to perform further manipulations.

Calibration of the optical proximity sensor on Xiaomi

To calibrate, you need to get into the engineering menu, to do this, launch the “Phone” application, where you usually dial the phone number to call, but instead of the number, enter the following characters: ##6483##

You are in the engineering menu, look for the line “Proximity Sensor”. First of all, let’s check if the sensor works at all, to do this, cover the upper part of the phone with your palm, where the earpiece is located. The value “5.0” should change to “0.0”. If this happens, the sensor is OK. Next, place the phone on a solid, level surface, make sure that the phone is not exposed to direct sunlight and that there are no obstacles up to 30 cm away from it. Click on the “Calibrate” button, wait until the message “Calibration passed” appears. Put your hand on the speaker again, the value should change like the first time. If this happens, exit the menu to normal smartphone mode and try to make a call, this time the screen should turn off when you bring the phone to your head.

Calibration of the ultrasonic proximity sensor on Xiaomi

Many Xiaomi models have recently begun to integrate an ultrasonic sensor instead of an optical one, in my subjective opinion, this is due to the fact that the screen began to be made in the entire front area of ​​​​the screen and there was no room left for the optical sensor.

We need to enter the engineering menu, a little higher I wrote how to do this. dial symbols instead of a phone number: ##6483##

Look for the line “Proximity Sensor”. You see a brief description of the function and the value “5”. To begin with, let’s test whether the sensor works at all, to do this, put the phone on the table, then slowly pick it up, as if someone is calling you and bring it to your face, while covering the top of the screen, where the speaker is, with your other hand. The value “5” should change to “0”. If this happens, then the ultrasonic sensor is working and you can proceed to the calibration.

Attention: when testing the ultrasonic sensor, it is necessary to simulate the lifting of the phone, otherwise the sensor will not be activated and the indicator on the display will not change. You may not succeed the first time, try several times. In my case with Mi 9 SE, with a known fully functional sensor, I managed to do this on the seventh attempt.

We made sure that everything works, now return to the main menu, in the upper right corner click on the “ellipsis” icon, then select “Additional tools” in the drop-down context menu. Again, look for the line “Proximity Sensor”. There is no automatic calibration for this type of sensor, but it is possible to change the sensitivity, or the volume of the emitted signal. For a person, we can’t hear the signal, move the slider to the right by one division, and then try again to simulate an incoming call by lifting the phone and covering the top with your hand. Do this until the indicator “5” begins to confidently change to “0”.

Once you have adjusted the sensitivity to the desired level, exit the engineering menu and use your smartphone for pleasure.

Disable “harmful” features

The most common reason for a sensor not working correctly is the “ lock” function, the meaning of which is to prevent the screen from turning on when the smartphone is in your Because of this option, the light sensor often works incorrectly.

This problem is relevant on all Xiaomi firmware, for some reason, engineers do not want to fix this problem or believe that everything is working as it should, however, for some users, this function does not cause problems. To turn off Lock, you need to go to settings, then to “calls” and then to “incoming calls”, there you can find a slider that turns off this feature.

Proximity sensor calibration on Xiaomi Redmi, note, Mi devices

Phones evolve from year to year, becoming more and more complex devices that have a dozen different sensors on board. Each of them is responsible for certain functions. For example, the proximity sensor is responsible for adjusting the auto-brightness of the screen and turning it off during a conversation, it is also called a light or ambient light sensor. Calibrating the proximity sensor on Xiaomi Redmi or note devices will help fix sensor malfunctions that can cause a lot of problems for the smartphone owner, such as accidental taps on the screen during a call. There may be several reasons for incorrect operation. If a banal reboot of the device does not help you, then let’s look at the reasons according to their degree of complexity.

Testing and calibrating the light sensor

Light Sensor Test

A fairly popular solution is to calibrate the proximity sensor of Xiaomi devices. First you need to check the sensor’s performance on the phone, for this we dial the following numbers ##6484## (you don’t need to press the call button), thanks to this combination you will be taken to the engineering menu, tested on Xiaomi mi4 and Xiaomi Redmi 3 pro, other ways there get described in our article about the engineering menu of Xiaomi phones. You will see 5 buttons on a black background.

Click on the top right, it should say “Single Item Test”.

In the list of components, you need to find and select “Proximity Sensor”, it is usually located almost at the very bottom.

How to Fix Proximity Sensor on any Xiaomi, Poco or Redmi Phone.

In the test itself, the screen will display the inscription “far” or “close”, closing and opening the light sensor (for example, with a finger), the inscription should change. If this does not happen, then this module is faulty. After this text, you can try to calibrate.

Light Sensor Calibration

Consider the calibration on the example of a smartphone Xiaomi Redmi 3s.

Hold down the volume button (increase the volume), and without releasing it, press the power button again. Your device should vibrate, after which you can release the buttons.

A menu will open in front of you, in 95% of cases it will be in Chinese (including on Xiaomi Redmi 3s). You need to click on the “中文” button, it is located on the bottom line to the right of the “download模式” button. After that, the menu language will change to English.

Click on the “PCBA test” button in the top line and the engineering menu opens in front of us.

If the touchscreen does not work, then use the “UP” and “DOWN” buttons to navigate to the “Proximity sensor” item and go into it.

Place your phone horizontally on a flat surface.

The light sensor should not be covered by anything (it is better to wipe it with a cloth).

Make sure your phone is not exposed to bright light.

Click on the calibration button “Calibration”, the sensor will begin to calibrate.

After the inscription “Successfully” should appear, it means that the calibration was successfully completed.

Now you need to check the operation of this module, cover the light sensor with an opaque object, on the screen 1 should change to 0 and vice versa.

After that, you may need to press the “Pass” button, you will be taken back to the engineering menu, there we press “Finish”, then “Power Off”, the phone should turn off.

We turn on the phone and check the operation of the sensor. When making a call, the screen should turn off only when you bring the phone to your ear. In our personal experience, the correct operation of the Xiaomi Redmi 3 proximity sensor was completely restored in this way.

Turn on the light sensor

Your sensor may simply be off. To enable it, you need to take a few steps, consider the example of Xiaomi Redmi 3s. Open the “phone” application (dialer in the common people) Long press on the menu In the list that opens, select “incoming calls” Then we find the “proximity sensor” in the list and turn it on if it is disabled

Some Xiaomi models may not have such an option, or this function will differ in the location in the menu. Unfortunately, it is not possible to give a universal menu path due to the wide variety of models and firmwares.

Wrong device firmware

If the calibration does not help, then the reason for the incorrect operation of the smartphone may be incorrect flashing, this applies not only to the light sensor. The problem is that the new firmware does not install correctly on the smartphone, receiving the remaining garbage from the old firmware. This problem concerns the update method through the regular recovery (bootloader). The transition to new versions should be done through fastboot or by resetting all settings and user data (full wipe). Of the minuses of this method, it is worth noting that all your data and applications will be deleted, but all garbage will be deleted along with them.

What can interfere with the sensor

One of the reasons for a malfunctioning proximity sensor is physical interference in its operation, namely a protective film or glass. For example, this proximity sensor does not work for our worker on Xiaomi Redmi note 3 pro for this very reason. If you do not have holes for the light sensor, then you need to either change the film / glass or make this hole yourself. This sensor is usually located above the screen, next to the front camera and earpiece. This problem is usually caused by low-quality or universal films. Therefore, before buying a protective coating, be sure to check the presence of all holes.

Other reasons

If the previous methods did not have the desired effect, then the reason may be to replace the screen with a poor-quality one. Unfortunately, screen modules for Xiaomi phones come with a light sensor. If you have already done a screen replacement in the service, then it is quite possible that, contrary to all the beliefs of the master, you just got a low-quality screen with a bad sensor. If from the beginning of the purchase itself your smartphone does not work correctly, then a simple marriage may be the reason. We advise you to contact the seller for further instructions.

Remember, all actions are advisory in nature, you do all actions at your own peril and risk.

We hope these tips helped you, be sure to write in the Комментарии и мнения владельцев if this article helped you and what kind of advice helped.

Calibrate the proximity sensor on Xiaomi

The proximity (light) sensor on Xiaomi is responsible for automatically adjusting the brightness, as well as turning off the display during a call. A failure in its operation can cause a lot of inconvenience, for example, the display may stop turning off during calls, which will lead to accidental clicks, as well as increased battery consumption. The issue can be resolved by calibrating the proximity sensor.

The reasons for failures can be different, so the first thing to do is restart Xiaomi. If this does not help, then let’s look at the options for solving the problem from the simplest to the most complex:

Is the sensor turned on??

Check if the sensor is turned on first. To do this, open the Phone application and hold down the left touch key in the form of three horizontal stripes. In the menu that opens, go to Incoming calls Turn off the screen during a call (proximity sensor). Depending on the smartphone model and MIUI version, the names of the menu items may differ slightly.

Turning off the lock feature

Activating this feature is one of the causes of sensor failures. Again, it can turn off in different ways on different models. First of all, look in the menu Incoming calls

If you do not have such an item, then go to Settings Lock screen and fingerprint Advanced settings mode and turn it off.

Removing physical obstacles

Another reason for sensor failures is a non-original protective glass or film on the screen. The sensor itself is located next to the front camera and earpiece. There should be a hole in this place, if not, then you need to change the film or cut it yourself.

Proximity Sensor Calibration

If the above methods did not help, it is worth calibrating the proximity sensor, but first check if it works at all. To do this, call the engineering menu. In dialing mode, enter ##6484## or ##4636## and see the following picture:

Here we are interested in the Single item Test item, open it and look for the Proximity Sensor item in a new window

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A test will open where, when the sensor is covered with a finger, the inscription Close should appear. If you remove your finger, the word Far will appear. If the sensor does not respond, you need to carry the smartphone to a service center, and if everything is in order, you can proceed with the calibration.

  • Turning off the smartphone.
  • Hold down the Volume Up Power button and wait for the vibration, after which the keys can be released.
  • A menu will open, which is likely to be entirely in Chinese. To change it to English, press the 中文 button.
  • Next, click PCBA test and in the new window we are interested in the item “Proximity sensor”.
  • Lay the smartphone horizontally on a flat surface. The light sensor must not be covered or dirty. Also, make sure it is not exposed to bright light.
  • Click “Calibration” to start calibration. Upon completion, you will see the inscription “Successfully”.

After the process is completed, you will need to check the sensor for operability. We cover it with a finger or an opaque object: if the number 1 on the screen has changed to 0, then everything is in order. Now click on the “Pass” item to return to the engineering menu, and then Finish, after which the smartphone will turn off.

Turn on the device again and check the operation of the sensor by bringing the phone to your ear during a call, the display should turn off.

Function calibration

Before setting up the sensor, turn off Lock. Depending on the version of the device, the option may be in incoming calls or additional settings on the device screen. You need to move the slider to the left so that it turns gray.

Download any application by typing “Proximity Sensor Calibration” into the Play Store search engine. Consider setting up one of the most popular applications. “Proximity sensor, reset repair service”. It is convenient because it is translated into Russian and has an intuitive control. How to independently calibrate the proximity sensor on Xiaomi:

  • Install the app and open it.
  • Allow access to the required applications and agree to the terms of use.
  • Go to main menu and click on setting option.
  • Move your finger to the sensor several times so that the red button turns green. The app will then redirect you to the next page.
  • Close the device with your palm, and then press the arrow.
  • Remove your hand from the top of the sensor for a long distance so that it does not work and click on the “Next” button.

After that, you will see the final result. If the function is calibrated correctly, a green check mark will be displayed on the screen. Save the settings by clicking on the checkmark in the lower right corner of the screen.

If something went wrong, the application will report an error and offer to go through the setup again. If after that the error appears again, then the problem is not a system failure, but the proximity sensor itself. In this case, you should take the device to the service and do not try to replace it yourself without proper experience, because the procedure requires knowledge and the availability of special tools. Otherwise, you may damage your smartphone and in any case you will have to send it in for repair.

How to turn on

Due to a system failure, most often after updates, the proximity sensor may not work or fail. Each owner of a smartphone can turn it on independently. To do this, follow these steps:

  • Open the Calls app.
  • Select the settings item. On different versions of the device, the icon may differ, but it is always located next to the call button.
  • Select “Incoming Calls”.
  • Find the “Proximity sensor” item and move the slider to the right.

Disabling occurs in exactly the same way, but the slider must be moved to the left so that it becomes gray.

Before calibrating the proximity sensor on a Xiaomi smartphone, its condition must be checked. Therefore, before the procedure, be sure to go to the settings for incoming calls and see if the option is enabled. If after that it does not stop working without any problems, then you can try to calibrate.

Depending on the model, the camera may be located in different parts of the screen. This is due to the design, the presence of a frameless screen, and so on. Therefore, consider the main location on different models of the proximity sensor on Xiaomi:

  • Xiaomi Redmi Note 7. located to the right of the camera. Due to the new location, the user can not always see the device, but you can navigate by the indicators on the screen, just look at the battery, because it was above it that the manufacturer placed the sensor.
  • Xiaomi Redmi 7A. located to the right of the speaker. Due to the limited screen size of Redmi, the manufacturer decided to place the camera according to the old design.
  • Mi Mix 2S. located to the right of the speaker. The model in the upper part has a minimum of space for a microphone and a device. Therefore, if you are in doubt about the location, then when calibrating, place your palm on the entire top of the device.
  • Xiaomi Redmi 4X. located to the left of the speaker. This is a Xiaomi model released in 2017, it is one of the last ones to have a big fringe and the sensor is located the same as other manufacturers.
  • Xiaomi Mi 9T. located to the right of the speaker. To find it, you need to look closely, because it is literally on the margins of the device.
  • Redmi Note 8 Pro. located to the right of the camera, just below the speaker. You can also navigate by the battery icon located on the screen.
  • Xiaomi Mi A3. located to the right of the main camera. Relative to the speaker, it is also to the right, and slightly to the left from the battery and Wi-Fi signal indicators.

As we can see, on relatively new models, the function is most often located to the right, and on the 2017 model, according to the old scheme, to the left of the speaker. This is due to the transition to frameless smartphones, where sometimes there is not enough space for the camera, so they either allocate a minimum of space for it, or make it retractable. It was a new design decision. to reduce the space for the device and make it almost invisible.

Sensor repair

Follow the instructions:

  • Unscrew and remove the back cover of the device. Sometimes the manufacturer puts a small key specifically for this purpose.
  • Remove protective screens, antenna unit to get to the proximity sensor.
  • Remove the battery to power off the smartphone.
  • Remove all plumes along the contour.
  • Remove the rubber seal. It is very important for the sensor, because it helps its proper operation. It is very important that both parts are in place. If there are any mechanical damage or a speck of dust, then the sensor will work very poorly or will not work at all. Therefore, inspect the rubber band and the attachment point itself for damage or foreign objects.
  • If the problem is in the sensor itself, then it must be replaced with a new one, carefully installed in the grooves.
  • Check the rubber again and reinstall.
  • Install the cables in any order and check if they are tight or not.
  • Install battery.
  • Install the protective screens and the antenna unit in place.
  • Screw back the back cover.

Turn on the device and check the operation of the sensor through the program with which the option was calibrated. Or dial any number, press the call button and at this time close the sensor with your hand, the screen should turn off.

When working with the device, you need to be very careful, because it is sensitive. If there are problems in operation, then first check it yourself, and then you can take it to repair. Checking and replacing if necessary will not take much time and money. Therefore, it is better to entrust the work to a professional.

Causes

Another reason where the Xiaomi Redmi 4X proximity sensor does not work is that the ” lock” option is enabled. For the sensor to work correctly, it must be disabled. The essence of this function is to turn off the screen while the gadget is in your

Due to its presence, the sensor does not work properly. To disable the option, it is recommended to visit the settings, then go to “Calls” and “Inbox”. Here you need to move the swipe to the left.

Is the sensor enabled?

Checking if the sensor is enabled in Redmi 4A or 4X is easy and simple: go to incoming calls, find the proximity sensor. You should see if the function is active. If the swipe is gray, scroll it in the desired direction.

The exact location depends on the specific mobile device model and firmware version. If the option is missing, it is recommended to consult the user manual to find it.

Wrong device firmware

If the calibration did not help, then the problem in Redmi Max may be in the incorrect firmware of the device. If there is “garbage” left from the old version, then the firmware may not load correctly.

This often occurs when updating through the bootloader. Recommended solution: update OS via Fastboot. You should also reset the settings and all user information. Don’t forget to save your information first.

The disadvantage of this method is that it removes all applications and files. However, with this data, the remaining “garbage” will also be deleted from the smartphone.

The proximity sensor on Redmi 2 may not work for various reasons. The feature can simply be disabled. To enable on this model and on 2s, you need to follow the instructions:

  • Launch the app on a mobile device.
  • Pressing the menu for a long time.
  • In the drop-down list, click “incoming calls”.
  • In the same section we find the “proximity sensor”.
  • If the swipe is gray, move it to the right side.

Xiaomi has a large number of models, so this instruction is approximate and also suitable for Redmi 3 and 3S. This feature may not be available on some devices.

Xiaomi proximity sensor not working well

The sensor may not work or work poorly in Xiaomi A1 due to physical interference. For example, glass or film. If the protective accessories do not have a corresponding hole for the sensor, then it is recommended to make it yourself, abandon the accessories or replace it with the appropriate one.

Look closely to see if anything is interfering with the sensor. It is located in the upper part, next to the front camera. Usually the problem occurs if the quality of the film or glass leaves much to be desired.

It is recommended that you carefully inspect the protective accessory before purchasing and make sure that all the necessary holes are present.

How to test the proximity sensor

If the problem is not resolved using the steps above, it is recommended to calibrate the sensor. First, you should check its performance. To do this, dial ##6484##. This manual is suitable for Xiaomi Mi4. Also suitable for Mi A1, Mi Mix 2, Mi Mix 2S and Mi5.

Through the entered combination we get into the engineering menu. Here, several sections will be displayed on a black screen. Select next. Single Item Test. Next, at the very bottom we find the desired subsection. Proximity Sensor.

The test itself is a message on the screen “far” / “close”. The sensor must be opened and closed. The message must change. If the module does not respond, we can conclude that it is inoperative.

How to solve the problem

If the problems persist, then it is possible that if the Redmi 6, 6a gadget breaks down, the screen was replaced with a non-original one. The display modules are developed along with the sensor. If you changed the screen, then it remains to be concluded that a low-quality product was installed with a poorly functioning or non-working sensor.

If the sensor did not work well initially, the reason is a manufacturing defect. Change the device under warranty or contact the seller to resolve the problem.

Sensor calibration through the engineering menu

The sensor in Redmi Note 3 is calibrated in the following way:

  • Turn off the device completely.
  • Hold down the volume key and the power key at the same time. The gadget should vibrate. The user will be presented with a menu in Chinese.
  • Press the key as in the picture. It is located at the bottom, just above the download button. The language will automatically change to “English”.
  • You can get to the engineering menu by clicking on the section at the top next to the PCBA Test inscription. We find the subsection proximity sensor, go.
  • Next, you need to place the device in a horizontal position. Surface must be level.
  • Wipe the sensor with a tissue and make sure it is not covered by any object. Also keep the device away from direct sunlight.
  • Click the “calibration” key. Procedure started.
  • The process ends with the inscription “successfully”. This means that the process completed successfully.
  • The next step is to test the sensor. Cover the module with a dense object that does not let light through. If the number 1 was displayed on the display, then it should change to zero and vice versa.
  • Next, press the “Pass” key. So we will be transported back to the engineering menu.
  • There are only a couple of steps left. Press “Finish” and “Power off” button.

The device should turn off. Then we connect it again and see how the sensor works. If the user receives a call, then the display should turn off only when the gadget is brought to the ear.

In this case, Redmi Note 9 is most affected, as a message appears on the screen, as if we were constantly covering the sensor. Luckily, the solution is simple, basically we have to go to Settings Lock Screen and select Mode to turn it off.

How to disable the proximity sensor on Android?

  • Turn on your smartphone, go to “Settings”. “System Application”;
  • Scroll the application menu to the item “Phone”;
  • Select the item “Incoming calls”;
  • Disable the proximity sensor (uncheck Turn off the screen automatically when you put the phone to your ear during a call) in this menu.
  • Open “Settings” in your phone.
  • Select “Calls”.
  • Go to the “Incoming calls” section.
  • In the item “Proximity sensor” check the box if it is not there.

Go to “Settings”. “System Application”; Scroll the application menu to the item “Phone”; Select the item “Incoming calls”; Disable the proximity sensor (uncheck Turn off the screen automatically when you put the phone to your ear during a call) in this menu.

How to Disable Huawei Proximity Sensor?

How to disable the proximity sensor through the settings

  • Go to “Settings” and here find the item “System applications”.
  • Click on the line “Calls” and select “Incoming calls”.
  • Find the line “Proximity sensor” and move the slider to the “Off” state.
  • Step 2.

The proximity sensor is responsible for the iPhone screen blanking function during a call. It fires when something covers it. During a conversation, this “something” is the head of a person, to which the iPhone is brought up. Thus, if the iPhone screen does not turn off during a call, the proximity sensor is to blame.

If your Android device does not turn off during a call, or the screen does not turn on after the end of the call, then you should look for the problem in the operation of the sensor. The reasons may be as follows: Poor visibility (covered / covered with a protective film or cover). Lack of RAM.

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