Bluetooth not pair with each other

How to synchronize wireless headphones with each other?

Normally the left and right earbuds will automatically pair with each other via a Bluetooth connection. When the first pairing is done, the inserts send signals to each other to calculate the time it takes to completely cycle the data between the right and left devices.

The first conjugation will calculate the time to cycle data between headphones

bluetooth, pair, each, other

When there is a lot of noise (interference) near you, the time spent on this cycle may be longer. As your headphones have to “wait their turn” to transmit the signal. When the exact data cycle time is known, it will be divided in half. From now on your earmolds will know how long it takes to transmit data between them.

Once the count is complete, the headphones will be ready to go

In most cases, the headphones are connected to the phone through one “main” earphone (usually the right. R). It does extra work, because it has to manage the connection to the phone of both earphones, and compensate for the delay in the signal between the right and left earpiece.

Usually, the right ear piece is used to connect both earmolds

The right earpiece battery drains slightly faster than the left earpiece battery. When a music signal comes in from the phone, the right earpiece immediately sends the signal to the left earpiece. It also causes a slight delay during music playback to ensure that the tracks on the right and left ear pieces will be played back in sync.

Reasons for not pairing wireless headphones with each other

Among the reasons why wireless earbuds don’t connect to each other, we will note the following:

Reasons: Explanation:
The headphone pairing procedure was not performed correctly by the user. People usually ignore instructions for turning on and setting up earphones, and try to guess at how to connect. The result of such actions is incorrect operation of the device.
The earpieces are located far away from each other. We recommend that you pair the headphones for the first time by placing them side by side.
One of the headphones is disconnected. For some versions of wireless headphones, it is not enough to take the headphones out of the charging box. You must also turn them on by pressing the multi-function button on each of the headphones for a few seconds. If one of the headphones is not turned on, the pairing will not take place.
The earphone(s) are not in pairing mode. Certain models require you to perform a series of actions (e.g., pressing the multi-function button on one of the earphones twice) to put them in sync with each other. If this does not happen, the earphones will not sync with each other.
The devices are discharged. An important prerequisite for pairing (especially the first pairing procedure) is that the earphones are fully charged. If one of the headphones is discharged, or near this mark, pairing may not occur.
The Bluetooth data on your phone already contains incorrect connection data for the Bluetooth headphones. This can occur if you have tried to connect the headset in the past and didn’t do it properly. Your phone’s Bluetooth device list has stored data from an incorrect Bluetooth connection. In this case it will be necessary to delete this data from there, “forgetting” the incorrect connection.
There is a powerful Wi-Fi router nearby. The Wi-Fi signal uses the same frequency spectrum as Bluetooth. Move away from the router.
See also  Samsung doesn't connect to Wi-Fi

Forget the incorrect connection Having listed the main causes of dysfunction, let’s describe the ways to pair your headphones with each other.

It will also come in handy: how to synchronize wireless headphones with each other.

What are the possible problems

The most common problem is when the headset is turned off and on again. It is not uncommon after that it connects only to the second gadget. There is nothing you can do here, you have to connect to the first one manually.

However, some models have an automatic connection mode, which is activated by pressing the button during the pairing. Check the manual to see if the headset model has the Multipoint option. If available, pairing will resume automatically when you reconnect.

For model specifics, please read the instructions. For Sennheiser Momentum 2 Bluetooth headphones.0 Multipoint is called “pairing mode” and is activated by holding down the button for 5 seconds.

What to do if the headphones do not synchronize with each other

If your wireless headphones don’t sync with each other, then do the following:

  • Remove your headphones from the list of paired Bluetooth devices on your phone (if you have tried pairing before); Remove incorrectly paired headphones from the list of paired devices
  • Turn off your earphones. Take them out of the charging box, and press the multifunction buttons (touch or mechanical) for a few seconds before turning off. The lights will turn off; Press the headphone’s multi-function buttons until completely off
  • Wait a couple of seconds and then press the multi-function button on both earphones again until they engage. The LEDs of the headphones will light up and you will hear a beep. Continue to hold the buttons down until the LEDs turn off. This will reset the headphones to factory defaults; Wait until the LEDs turn off to reset the device
  • When the LEDs go out. release the headphones;
  • Now press both buttons again until the LED lights up. Once the LEDs light up. release the buttons;
  • The headphones will go into pairing mode and find each other. Then the LEDs of one earphone (usually the left one) will turn off and the other one will blink to look for your phone; the right earphone will blink to look for your phone
  • You need to connect the main (right) earphone to the phone. Find it (usually the right one. R) in the list of available Bluetooth devices for pairing, and pair it with your smartphone.

This method works well with QCY and other models of wireless headphones.

How wireless headphones work

Various methods are used to enable wireless data transfer between devices. The organization of communication between the headset and the sound source is possible due to the built-in receiver using radio frequencies, infrared port or Bluetooth. Xiaomi and Redmi AirDots headphones use Bluetooth connection. This technology is most often used to transmit the signal from the device to the headset because of the absence of interference, which is due to the arrival of data in digital form. The disadvantage of this method is the compression, which is performed before sending the information to the headphones, and as a result you can not achieve high quality sound. The sound in Xiaomi and Redmi AirDots is quite decent, considering the price segment of devices, Bluetooth supports audio codecs SBC, SBC XQ, but AptX or AAC is not to dream about.

See also  The monitor is black but the computer is working

To pair a Bluetooth headset with an audio source you need to turn on the AirDots and synchronize it with the device. The procedure takes only a few seconds and is usually done successfully. In this case, in some cases, users have problems with synchronization, for example, by connecting a headset, you will find that the second earphone is idle. What is the problem and how to fix it, let’s see below.

Let’s first look at the sound path.

On the left side of the board there are three strands soldered coming from the headphones, the tracks, marked with red lines, go to the two legs of the variable resistor. From the other two legs of the resistor, with black lines, the tracks go toward the plug.

Micro switch interferes a little, because it blocks the visibility of the tracks, but I do not unsolder it, and you do not advise. Just take a multimeter and call them from start to finish. The “minus” or “common” path goes all the way through the board without breaking anywhere.

Now, if we connect the audio signal to the headset, the paths marked with black lines, it comes to the resistor and the two red lines, coming out from the resistor, go to the headphone. A dual variable resistor is used here so you can hear stereo sound, so it has five legs: two for input, two for output, and one for common (minus).

Although a normal twin resistor has six of them, but in order to miniaturize and save material, one leg of each resistor is combined into one, because the circuit still connects them together. To make it clearer to you, here is a schematic diagram of the sound path, observing all the colors used in the figure above.

bluetooth, pair, each, other

As you can see, three of the five strands of outgoing cable to the plug (jack), we identified without difficulty, and the next step is to deal with the remaining two.

Looking closely at the board, and you can see that there are two tracks coming from the micro switch legs, going through two capacitors and a microphone. It turns out that all four elements are included in parallel, and if you press the micro switch, the circuit will short-circuit and turn off the microphone from work.

It is concluded that during the conversation, if you want to hear the other party, you must mute the microphone by pressing the. Here is the circuit diagram of the microphone and micro switch.

Now I think you will understand exactly when there is a problem with your favorite headphones. In the described way you can repair headphones of any fancy and complexity.

Signal interruption on Bluetooth headphones

With an interrupting signal is quite easy to deal with

There is nothing more annoying than a Bluetooth connection disappearing when listening to music. There can also be several factors. First of all, it is again other devices, but this time you only need to look on your smartphone. The module might be overloaded, or it might be distributing connection channels between, for example, your watch, headphones, and speakerphone incorrectly. Try to alternately disconnect different gadgets until you find the “culprit”. After that, remove it from the system and re-pair it.

bluetooth, pair, each, other

Another common problem is obstructions. And in this case the obstacle can be yourself. Yes, don’t be surprised, some not-so-new models of “ears” are pretty bad at “piercing” the human body. So try moving the smartphone to another For example, from pants to breast

See also  Changing your voice when calling Android

Bluetooth is not working

The reasons for why Bluetooth on Android does not turn on at all is actually not so much: either it is a software bug in the firmware of the device, or the radio module is broken. Try resetting the device first. There is a high probability that this will be enough and everything will start working more than before.

Solving the problem with Bluetooth on Android is not that difficult.

If a simple reboot did not help, be sure to check the operating system updates, perhaps the manufacturer is already aware of the problems and has released a new version of the firmware for its owners. You can check Android updates as follows:

  • Open Settings.
  • Scroll down to About Your Phone.
  • Then go to Software Update.
  • Click Check for updates.
  • Check out the available updates.

If there is a new version in your settings, I highly recommend that you try to update in the near future. Especially since it only takes a few minutes.

It did not work? Well, then the way is straight to the service center. Specialists will diagnose and tell you what you can do with your smartphone. And before you go to the service make sure you read this article so you don’t end up paying for it.

The difference between wireless headphones

It’s no secret that there are wireless earbuds (drops or earplugs), overhead or full-size (monitor) headphones. All of these devices fall into several categories, depending on the type of connection:

  • Working through the IR port. These accessories work much like a typical TV remote control. On this basis, they have two big disadvantages. First, there must be no obstacles between the signal source and the “ears” themselves. Secondly, the maximum distance at which infrared headphones can be used is 10 meters.
  • Operating through radio wave signals. The principle of these devices is the same as that of a radio telephone. Hence their main advantage. a long range, which, depending on the model can range from 10 to 150 meters. In this case the signal level is not affected by walls and other obstacles. Usually in the base of radio headphones built a special radio transmitter transmitting signals in the range of 433-435 MHz and 863-865 MHz. However, when listening to music with these “ears” you may be disturbed by other radio waves.
  • Working via Bluetooth. Modern Bluetooth wireless headphones are an intermediate version between the two previous types of “ears. They have a range of up to 10 meters, but are not affected by obstructions such as furniture or walls. They are also immune to radio interference, so the sound in these accessories will be relatively good. But Bluetooth connection drains the battery a lot. That’s why it’s worth buying an external battery for your phone.

The last category of accessories is considered the best, because you can use Bluetooth headphones for TV, smartphone, computer, tablet and many other devices. That is why we will consider the connection of wireless “ears” only of this type.

Denial of responsibility | Contacts |RSS | SE | EN | BR | DE