How to Connect Phone to Xiaomi 4s TV

How to connect a Xiaomi smartphone to a TV?

Do you have a reason to watch content from your smartphone on a big screen, but do not know how to do it? In this tutorial, we’ll show you how to do it.

How to Connect Phone to Xiaomi 4s TV

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How to connect?

When connecting to most modern TVs, problems should not arise, because they have a built-in Miracast module. The method of activating the wireless mode in such a TV is in the instructions supplied with the device. To connect to such a TV, you need to turn on the Wi-Fi module on your smartphone. No need to connect to the network.

1) Go to “Settings” (if the shell is MIUI), select the item “Additional functions”.

2) Next, select “Wireless Display”.

If you use a device on “bare” Android (MI A1), then these settings are located: “Settings”. “Screen”. “Broadcast”.

3) In the window that opens with the search for devices available for connection, we look for your TV in the list and select it for connection.

4) If the connection is successful, you will receive a duplicate smartphone image on the TV screen. Now everything that happens on the smartphone will be displayed on TV.

To connect, you also need a free HDMI port.

If your TV does not have HDMI inputs, then a special converter will help you to convert a digital signal to analog. When using it, you will be able to connect the MiraScreen adapter to your TV using the “tulips” that are present in almost all TV models.

Also, to connect MiraScreen (as well as a converter), additional power is required. The MiraScreen adapter shown in the photo above has an external antenna that is located on the USB cable. This cable also supplies power to the adapter.

The adapter can be plugged into a USB port. If it is not there, then you should use any charger with parameters 5V / 1A.

After connecting the adapter, the current operating mode (Apple or Android / Windows) will be displayed on the screen. If necessary, it can be changed using a special button on the device body.

The very connection of the smartphone to the TV takes place in a similar way, which is described above.

Connect phone to TV using Miracast

Budget models lack a wireless module. In this case, a separate adapter (for example, Mirascreen G2) will help to broadcast the phone screen to the TV. Yes, you have to spend money. But the purchase more than pays off with the high transfer speed and ease of setup.

  • Connect the Miracast receiver to an available HDMI connector.
  • Connect the USB power cable to it.
  • Switch the TV set to the selected HDMI: information with connection parameters will appear on the screen.
  • Enable image broadcast on your smartphone.
  • Connect to the wireless network of the adapter.

Done! Question: “How to connect a phone to a TV via HDMI” solved.

Connect phone to TV via Wi-Fi

I connected an Android smartphone two or three years ago to a Smart TV. It’s convenient. it connects without wires and additional equipment. But not practical: video and games are not available.

  • Make sure your phone and TV are on the same wireless network. This is possible if your router is dual-band.
  • To connect your phone to a TV, start the corresponding function on TV.
    Activate screen broadcast on your smartphone. The item “Settings → Connected devices” is sometimes referred to as “Broadcast” or “Miracast”. This item may be hidden in the display settings. For branded TV control applications (LG TV Plus), the menu is called “Connect to mobile device”.
  • Search your wireless network. When TV is indicated, a PIN code appears on the screen. Enter it on your smartphone.

After trying to connect the phone to the TV via Wi-Fi, the phone screen will be broadcast to the TV.

If a TV without Smart, but a Smart TV set-top box with Wi-Fi is connected to it, the devices are synchronized in the same way. The procedure is described above, only performed on the console.

How to connect your phone to your TV: 3 fastest ways How to connect Android to TV with MHL cable

A special cable or MHL adapter is required. For example Dynamode MHL-HDMI-UNI. He’s not expensive. Bought and forgotten: you can watch videos and play for fun. The only drawback is that MHL is not supported on all devices.

  • Connect MHL device to HDMI port, → to smartphone, → to external power supply.
  • To display the smartphone screen, switch the TV source to the desired HDMI port.

Watch the video on how to connect your smartphone to a Samsung TV

  • TV sets
  • Mobile phones
  • HD media players
  • Digital television receivers

Leave your opinion and wishes to the article “How to connect a phone to a TV: 3 fastest ways”

Play multimedia content

There is support for Chromecast. Video and sound can be transferred from an Android tablet (static images are good, watching videos is bad). Also, from a PC running Windows 10 from Google Chrome, you can transfer a copy of the image in the current tab (in 1080p resolution) and a video from YouTube as a link for playing on TV.

In superficial testing of the playback of multimedia content, we limited ourselves to a number of files launched mainly from external USB drives. UPnP (DLNA) servers can also be sources of multimedia content. We have tested 2.5 ″ hard drives, external SSDs and regular flash drives. The two tested hard drives worked without problems from the USB port without additional power. Note that the TV supports USB drives with FAT32, exFAT and NTFS file systems, and there were no problems with Cyrillic names of files and folders. The TV player detects all files in folders, even if there are a lot of files on the disk (more than 100 thousand).

It makes little sense to test the playback of audio files using the built-in player, since there will certainly be a third-party program that will handle this well and as convenient for the user. In the case of raster graphic files, the capabilities of the built-in player are worth discussing, since only it can play these files in a true resolution of 3840 × 2160. All third-party programs, like the OS itself, display a static image at a resolution of 1920 × 1080. However, both the built-in player and third-party programs can output video in true 3840×2160 resolution using hardware decoding. A number of video streaming software such as YouTube, ivi and okko (Megogo is questionable) can output 4K video. However, only in the case of YouTube, the video quality was confirmed using test clips. YouTube videos in HDR mode are not played. SDR version is selected.

We have confirmed the ability of the built-in TV player to display bitmap graphic files in JPEG, GIF, PNG and BMP formats. In general, the functionality of this player is very limited.

In the category of common formats, the TV media player does not support playback of some legacy video file formats, but they can be played back up to Full HD resolution using software decode such as MX Player. Modern high-definition files are very likely to play in hardware decoding, up to H.265 in UHD @ 60fps. It supports playback of HDR10 and HLG video files, and in the case of files with 10 bits per color, according to the visual assessment of the gradation of shades, more than 8-bit files. 4K HDR video files play fine in the case of MP4 and M2TS containers (HEVC, HDR10), and pale in the case of MKV and WebM containers (VP9). At least AAC, AC3, DTS and MP3 audio decoding is supported. Disc images can only be played by files, no menus, etc.

Test videos to determine the uniformity of frame rotation helped to reveal that the TV, when playing video files, adjusts the screen refresh rate to the frame rate in the video file, but only at 50 or 60 Hz, so files with 24 fps are played with alternating frame lengths of 2: 3. In the standard video range (16-235), all shades are displayed. The maximum bitrate of video files, at which there were no artifacts, when playing from USB media was at least 120 Mbps, over a wired Ethernet network. only 34 Mbps, and over Wi-Fi (5 GHz). 70 Mbps. In the last two cases, the media server of the Asus RT-AC68U router was used. The statistics on the router show that the Wi-Fi up / down speed is 866.7 Mbps, that is, the TV has an 802.11ac adapter.

The volume of the built-in speaker system for a living room, corresponding in size to a given screen diagonal, can be considered sufficient. There are high and medium frequencies, there are practically no low frequencies. The stereo effect is pronounced. There are parasitic resonances of the case, but there is no rattling even at high volumes. The sound is harsh, but in general, for the class of acoustics built into the TV, its quality is acceptable.

The volume margin when using headphones at 32 ohms with a sensitivity of 112 dB is large, the level of background noise is lower than audible, low frequencies are already present, the sound quality is good. However, the difference when connecting headphones with a built-in DAC via USB is felt very well, and it is not in favor of the analog TV channel.

TV tuner

This model is equipped with a tuner that accepts analog and digital signals for terrestrial and cable broadcasting. The reception quality of digital channels on a decimeter antenna fixed on the wall of the building (almost line of sight towards the TV tower in Butovo, located at a distance of 14 km) was at a high level. we managed to find TV channels in all three multiplexes (only 30 and 3 channels radio). True, TV froze after detecting channels in the first two multiplexes, and channels in the third had to be found manually.

There is good support for the electronic program guide. you can see what exactly is on the current and other channels, program the viewing of a program or series, etc.

Switching between TV channels is slow. about 3 seconds. This slowness is slightly annoying.

Teletext is supported. True, on the first channel, the text was displayed in Latin letters, but on a number of other channels. in Cyrillic.

Go to the Teletext settings to try to select a code page, it does not work. TV throws either a menu level above or to the home page.

Remote control and other control methods

The remote is small and lightweight (60 g with batteries). The body of the remote control is made of plastic with a black matte surface. Button labels are large enough and contrasting. The buttons themselves are very few. This deficiency is partially corrected with the help of a virtual remote control with numbers, which appears on the screen in the TV-program viewing mode when you press the right side of the cursor dial.

This remote works via Bluetooth. The pairing of the remote control with the TV, required for operation via Bluetooth, must be performed by the user when the TV is turned on for the first time. The TV responds quickly to commands from the remote control. There is a microphone hole in the front end of the remote control. Google’s voice assistant is launched by clicking on the colorful button with a microphone on the remote, or it can also be launched from the home page. This assistant will help you find content that a number of programs provide.

Voice search can also be launched in a number of programs in which there is a circle with a microphone to the left of the input line.

However, there is no direct integration with the TV itself, that is, the voice will not be able to switch TV channels, change the volume, etc. When the microphone is activated while watching TV channels, the sound is not muffled, but the microphone selectivity is high, so quite loud phrases uttered by the user are well recognized. If any USB devices are connected to the TV, the remote control microphone is sometimes muted. To enable it, it is enough to disconnect these devices and connect again (if they are needed).

Coordinate input functions, such as a gyroscopic mouse, are not available on the standard control panel. The limited capabilities of the remote control in the case of such a “smart” TV can be compensated by connecting a keyboard and mouse to the TV. These input devices work through a USB hub. You can connect USB storage devices at the same time through the splitter. The mouse was also connected via Bluetooth, but our keyboard via Bluetooth did not work, however, maybe this is a feature of this keyboard. it does not work with all devices. The mouse and keyboard, with some restrictions, work in the interface of the TV itself and in programs. The delay in the movement of the mouse cursor relative to the movement of the mouse itself is small, but still felt. The right mouse button displays a list of properties. The scroll wheel works. In the case of a keyboard, some shortcuts from the main and secondary multimedia set are supported. It is convenient to use third-party programs to change the layout on the physical keyboard. It is inconvenient that to cancel / exit you need to press the special navigation key [back], not [Esc]. Not every keyboard with multimedia keys has this button. Switching between programs is performed by the traditional combination [AltTab], but during switching the list of programs is not displayed, which is inconvenient. It should be noted that, in general, the interface is well optimized for using only the complete remote control, that is, it is not necessary to connect a keyboard and mouse. For some reason, the proprietary Mi Remote controller application does not work with this TV.

The software platform for this TV is Android TV, which is the successor to Google TV. The installed version of Android TV is based on the OS Android 9. From standby mode, the TV turns on quickly: after about 9 seconds the image is already displayed, but for some time the programs and the shell may slow down. If there was a power outage or the TV was turned off, then the system restarts again, and this already takes much more time. about one minute. The hardware configuration is explained by the CPU-Z program data:

The manufacturer claims 8 GB of internal memory, of course, less is available. TV’s internal memory can be accessed using built-in FTP server

The home page on Android TV is a series of horizontal ribbons with tiles of installed apps and recommended content. The captioned circles on the left explain what the content of the feeds refers to and allow you to run the corresponding program. At the top of the page there are icons-buttons for voice and text input of the search bar, for displaying system messages, selecting inputs, for accessing settings and hours.

Home page settings allow the user to change something on it.

There is also an alternative version of the homepage called Patch Wall from the manufacturer, but it does not provide any special advantages from our point of view.

The home page from Google can be called with the button on the remote control with the image of a circle, and the Patch Wall. with the button marked MI.

There are not very many image settings. They are accessible from the settings menu, invoked from the home page.

The settings are also available through the context menu (call. pressing the central button of the cursor block on the remote control) in the form of a strip with circles without switching to the home page.

This context menu is available when watching TV programs and when connected to a PC, but for some reason it is not called up when connected to a BD player. There are several preset picture profiles, in one of them the user can change a number of additional settings.

The interface is translated into Russian, the translation quality is good.

Measurement of brightness characteristics and power consumption

Brightness measurements were taken at 25 points on the screen, spaced 1/6 of the screen width and height (screen borders not included). Contrast was calculated as the ratio of the brightness of the white and black fields at the measured points.

Parameter Average Deviation from the averagemin.,% max.,%
Black field brightness0.08 cd / m²−1822
White field brightness290 cd / m²−137.0
Contrast3540: 1−15sixteen

Hardware measurements showed that the contrast is typical for VA matrices, and the uniformity of all three parameters is acceptable. On the black field, you can notice some variation in the backlight across the screen area:

But in fact, due to the high contrast, you pay attention to this only when displaying a black field in full screen in complete darkness and after adapting the eyes, in real images and in a home environment, it is almost impossible to see the unevenness of black illumination.

Brightness of the white field in full screen when measured in the center of the screen and power consumption (no USB devices connected, sound off, Wi-Fi active):

Setting value Brightness, %% of the scale Brightness, cd / m2 Power consumption, W
100307105
5017774.4
03943.3

In standby mode or in a conditionally off state, TV consumption is approximately 0.3 W.

At maximum brightness, the image will not appear faded, even in a brightly lit room. Whereas in complete darkness, you can set a comfortable brightness level.

The backlight brightness is controlled by PWM at 300 Hz:

The modulation frequency is relatively high, flicker can in principle not be detected in normal TV viewing, but still, at medium and low brightness with fast eye movements or in the stroboscopic effect test, flickering can be detected.

The heating of the TV can be estimated from the following image from the IR camera, obtained after long-term operation at maximum brightness in a room with a temperature of about 24 ° C:

It can be seen that the main heat source is the central area of ​​the screen and its lower edge. This TV may be using edge lighting with a bar of LEDs along the bottom edge, but this is inaccurate.

Working with video sources

Cinema modes were tested when connected to a Sony BDP-S300 Blu-ray player. An HDMI connection was used. The TV supports 480i / p, 576i / p, 720p, 1080i and 1080p at 24/50/60 Hz. The colors are correct, taking into account the type of video signal, the brightness definition is high, although the horizontal targets are slightly blurred. Color clarity is slightly lower than possible. In the standard video range (16-235), almost all shades are displayed on the gray scale, only in highlights one shade closest to white is indistinguishable from white in brightness. In case of 1080p @ 24 fps, frames are output with interleaved 2: 3 duration.

In most cases, the TV does an excellent job of converting interlaced video signals into a progressive image, even with the most intricate alternation of half frames (fields), there is practically no output by fields. When scaling from low resolutions and even in the case of interlaced signals and a dynamic picture, the edges of objects are smoothed. the teeth on the diagonals are very weak. Video noise reduction features work very well without causing artifacts in the case of a dynamic image.

When connected to a computer via HDMI, we received an image output in a resolution of 3840 by 2160 pixels with a frame rate up to 60 Hz inclusive. In the case of a 4K signal with native color definition (RGB output), the actual image is displayed on the TV screen with a very noticeable decrease in color definition.

Under Windows 10, HDR output to this TV is possible by selecting the appropriate options in the display settings. At a resolution of 4K and 60 Hz, the output is in 8-bit per color mode, supplemented by dynamic color mixing, apparently using a video card at the hardware level. At 24 Hz. 12 bits per color:

Playback of test videos with 10-bit color and smooth gradients showed much more gradation than with simple 8-bit output without HDR. However, the presence of dynamic color mixing is visible to the naked eye. Test HDR videos with real and test images were displayed with good quality for subjective feelings. The maximum brightness in HDR mode is the same as in SDR mode, also the color gamut is not wide (see below), so HDR support is nominal, but still there.

Review of the 55-inch “smart” 4K LCD TV Xiaomi Mi LED TV 4S 55 “on Android TV

Color quality assessment

To assess the nature of the increase in brightness, we measured the brightness of 256 shades of gray (from 0, 0, 0 to 255, 255, 255). The graph below shows the increase (not an absolute value!) Of brightness between adjacent semitones:

The growth of the increase in brightness is uniform, and each subsequent shade is brighter than the previous one. In the darkest area, all shades of gray are distinguished:

The approximation of the resulting gamma curve gave an exponent of 2.24, which is close to the standard value of 2.2, while the real gamma curve deviates little from the approximating power function:

The color gamut is very close to sRGB:

At the same time, the colors on the screen have natural saturation, since most images at the moment are supposed to be viewed on devices with sRGB coverage.

Below is the spectrum for the white field (white line) superimposed on the spectra of the red, green and blue fields (lines of the corresponding colors):

Such a spectrum with a relatively narrow peak in blue and with wide humps of green and red is typical for monitors that use white LED backlighting with a blue emitter and a yellow phosphor.

By default, the color temperature is high (about 8400 K for white and gray). When choosing the Cold and even Warm profiles, everything only gets worse. 10800 K and 12300 K, respectively.

So there is no choice, you need to select the Default profile. The graphs below show the color temperature at different parts of the gray scale and the deviation from the blackbody spectrum (parameter ΔE):

The range closest to black can be ignored, since the color rendition is not so important in it, and the error in measuring the color characteristics is high. It can be seen that ΔE is less than 10 on most of the gray scale (this is good), while both parameters change little from shade to shade on a significant part of the gray scale. this has a positive effect on the visual assessment of the color balance.