Xiaomi TV doesn’t show an image, but there’s sound: what to do in 2026

You turned on the Xiaomi TV and the screen was black — but the sound is working as usual? TV 4A/4S/4X/5 Pro, Redmi Smart TV And even the flagship Xiaomi TV Q2/Q1E. V 80% You can fix the malfunction yourself without going to the service center, and in this article, we'll look at all the possible causes, from the commonplace disconnected cable to the firmware failure, and we'll give you checklists and step-by-step instructions with photos.

So the important thing to understand is that if there's sound, the main circuit is working, and the problem is either the circuit or the screen itself, and we're not going to recommend that you reflash the TV without a diagnosis, we're going to test the simple solutions that take 5 minutes, and if it's a hardware breakdown, we're going to tell you how to save money on repairs.

Start with the first section and check each item consistently, saving you time and nerves.

1. Connection verification: cables, connectors and signal sources

The first thing you need to do is make sure that the problem isn't with the external device, and most often, the black screen is caused by poor contact in the device. HDMI-ports, damaged cables or an incorrectly selected signal source.

Follow this algorithm:

• 🔌 Turn off all cables from the TV (HDMI, AV, Antenna, and reconnect them. - Check if the plugs are bent.
• 🔄 Switch the source of the signal with the Source (or Input) button on the remote. Sometimes the TV "hangs" on a non-existent input.
• 🖥️ Connect another device to the same thing HDMI-If the image appears, the problem is in the first device.
• 🔍 Look at this. HDMI-cables are damaged, especially when the cables are bent.

If you use HDMI-ARC (For audio panels, try connecting the signal source to another port, sometimes data protocols conflict, and check if Game Mode is activated in the settings, which can block the output of the image if it is incompatible with the device.

If you don't see the image after you've done this, move on to the next section. If the TV is up, remember, 30 percent of the time, the problem is oxidized contact. HDMI-They can be cleaned with alcohol and cotton swab.

Screen Diagnostics: How to Know if the Matrix is Broken or Not

If the connections are fine, but the screen is still black, you have to check the matrix itself.

1. Turn on the TV and wait until the loading (usually) 10-20 seconds).
2. Hold the flashlight to the screen at a 45-degree angle, and if you see a dim image (even the outlines of the menu), the backlight is a problem.
3. If the screen remains completely black, the matrix or plume connecting it to the motherboard may have failed.

Also, try to easily press the TV body in the middle of the screen, if the image appears for even a second, the connector of the matrix plume (it could move away from vibration or temperature changes) is to blame.

If you confirm that the problem is in the matrix or backlight, further repair depends on the model of the TV. TV 4A The lighting consists of separate LED-The tapes that can be replaced piece by piece, and in Xiaomi TV Q1E The matrix is soldered to the frame, and its replacement requires complete disassembly.

3. Resetting: software failures and their elimination

If the hardware is fine, but the image is still missing, it's the software failure.

• 🖥️ Firmware conflict after update.
• 📱 Failure in the graphics driver (often after installing third-party apps).
• 🔄 Incorrect permission settings (for example, if the TV tries to output) 4K irreconcilable).

The most reliable way to get back up to work is to reset to factory settings, but how do you do that if the screen isn't working? There are two ways to do this.

Method 1: Resetting through physical buttons

On the back of the TV (usually under the logo or side) there is a Reset button or a combination of buttons.For Xiaomi Mi TV algorithm:

1. Turn the TV off the socket.
2. Press the Menu button (or Joystick if it is one) on the body.
3. Without releasing the button, turn the TV on.
4. Hold the button tight. 10-15 seconds until you hear the sound of the reboot.

Method 2: Recovery Mode Reset (for advanced)

If the first method did not work, you can try to enter the recovery mode:

1. Turn off the TV.
2. Press the Menu buttons simultaneously + Volume Down (or Joystick Down).
3. Turn the TV on by holding the buttons.
4. Through 5-7 Recovery Menu should appear if the screen is running).
5. Select Wipe Data/Factory Reset using volume buttons and confirm the selection.

After the reset, the TV will restart, if the software is the problem, the image should appear, and if it is not, move on to the next section.

4. firmware update: how to reflash the TV without a screen

If the reset didn't work, the next thing to try is to update the firmware manually.

• 📥 The TV was recently updated "over the air" and then stopped showing images.
• 🔄 On the screen before the disappearance of the picture appeared artifacts (strips, flickering).
• 🖥️ The TV responds to the remote (you can hear the sounds of navigation on the menu).

For manual updates you will need:

• 💾 USB-storage device (formatted in FAT32).
• 📄 Firmware file for your model (you can download it on the official website of Xiaomi Support).
• 🔌 Power supply (do not turn off the TV while firmware is running!).

Instructions for updating:

1. Download the firmware for your model (for example, for Mi). TV 4A It's gonna be a file of sorts. mi_tv_4a_***_ota.zip).
2. Unpack the archive and copy the file update.zip root USB-storage.
3. Insert the flash drive into the TV (port) USB 2.0 is usually more stable).
4. Press the Menu button on the TV body and, holding it, turn the TV on the network.
5. Hold the button. 10-15 Seconds – the TV should start the refresh process (you will hear the beeps).
6. Do not turn off the TV during the day. 5-10 minutes (the firmware takes about a week). 3-5 minute).

If the firmware is successful, the TV will restart. If it's not, try another one. USB-drive or check the integrity of the firmware file.

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If you are not sure about your TV model, look it up on the back sticker (e.g., the TV model, L43M6-RA for Mi TV 4A 43) This will help you download the correct firmware.

5. Checking the power supply and capacitors

If all previous methods failed, the problem could be in the power supply or capacitors, a typical malfunction for Xiaomi TVs that are more commonly used. 3-4 Symptoms of years:

• 🔌 The TV is not turned on the first time.
• 💡 The lights will flash or go out after a few seconds.
• 🔥 TV smells like smoke (especially after a long workout).

To check the power supply:

1. Turn off the TV.
2. Remove the back cover (unscrew the screws around the perimeter).
3. Examine the charge of the power supply for bloated capacitors (they will be convex or with electrolyte dashing).
4. Check the fuse (usually located next to the network connector) - it may have burned out.

If you find bloated capacitors, you can replace them yourself (they cost a penny), the main thing is to choose capacitors with the same parameters (capacity and voltage). TV 4A Capacitors often fail at 1000 μF × 16B.

⚠️ Warning: If you have no experience with a soldering iron, do not try to repair the power supply yourself! an error can lead to a short circuit or fire.

Also check the power plumes that run from the power supply to the motherboard, and sometimes they move or rub, which leads to the absence of image in the working sound.

6. Diagnostics of the motherboard: video chip and soldered connections

If all previous steps failed, the problem is most likely the motherboard.

• 🖥️ Video chip (responsible for image output).
• 🔌 soldered joints (over time, contacts oxidize or crack).
• 💾 Flash memory (if the TV doesn’t load at all).

For the diagnosis of the motherboard:

1. Remove the back cover of the TV.
2. Check the fee for darkened or burned areas.
3. Check if the connectors are moving away (especially the plume going to the matrix).
4. If you have a soldering iron, warm up the video chip carefully (usually hidden under the radiator), sometimes this temporarily restores contact.

The most vulnerable models:

• Xiaomi Mi TV 4A — MStar video chip often fails 6A928.
• Xiaomi Mi TV 4S — Circumstances of the connector HDMI.
• Redmi Smart TV — South Bridge overheats due to poor ventilation.

If you find a malfunction on the board, but are not sure of their abilities, it is better to contact the service. repair of the motherboard requires experience and special equipment (for example, an infrared soldering station for soldering a video chip).

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If the TV is turned on, but through 2-3 And in a second, the image disappears -- that's a sure sign of a video chip malfunctioning or a motherboard overheating -- and that's where professional repairs can help.

7. When to contact the service: prices and guarantees

If you have tried all the methods, but the TV still does not show the image, it is time to contact specialists. Here are the approximate prices for repairs in 2026 (for Moscow and the regions):

Before you take the TV to the service, specify:

• 📋 Is there a guarantee (even if it is over, some services give a discount).
• 🔧 Do they use original spare parts (for example, it is better for Xiaomi to take matrices from the main components of the device) BOE or CSOT).
• ⏳ Is there a warranty for repairs (standard — 3-6 months).

If the TV is guaranteed, do not open it yourself - this will void warranty obligations. Contact the authorized Xiaomi service center (the list can be found on the official website).

⚠️ Warning: Some services offer "cheap" repairs using used parts, which can lead to repeated failures through the use of used parts. 1-2 Always ask if new details are installed.

FAQ: Frequent questions about the black screen on Xiaomi TV