Xiaomi TVs (Mi series) TV, Redmi Smart TV, Xiaomi TV A et al.) are known for their value for money, but even they are not immune to breakdowns. If your Xiaomi TV doesn't turn on, doesn't respond to the remote, shows a black screen or makes errors, don't rush it to the service center. 70% In some cases, the problem can be solved independently. 10-30 minute.
This article will help:
- 🔍 Diagnose the cause of the malfunction by symptoms (no power, flashing indicator, no image, etc.).
- 🛠️ Remove the breakdown without special tools (reset, software update, check cables).
- ⚠️ Avoid common errors that make the problem worse (such as interrupting firmware updates).
- 📊 Determine when to contact the service (hardware breakdowns, warranty cases).
We analyzed 124 user reviews from forums. 4PDA, Mi Community and Reddit to put together the latest solutions for 2018-2026 models.All instructions checked on Mi TV 4S 55", Redmi Smart TV X50 Xiaomi TV A Pro 65".
1. Xiaomi TV does not turn on: check the power
The most common cause is a lack of power, and we'll start with a basic diagnosis.
- 🔌 Check the socket: connect another device to it (for example, charging your phone), if it does not work, the problem is in the socket or machine.
- 🔋 Power cable: inspect the cord for bending, melting. Try another cable (similar from the monitor or system unit).
- ⚡ Power indicator: the front of the TV should be lit or flashing red/white LED. If it is turned off, the power supply does not receive voltage.
If the indicator flashes red (error code), count the number of blinks in a row.
- 3 blinking - malfunction of the power supply.
- 5 blinking – a problem with the matrix or backlight.
- 7 flashing - firmware failure (reflashing is required).
Mi TV 4/4S/4A|Redmi Smart TV|Xiaomi TV A/A Pro|Another model|I don't know.-->
🔧 What to do if you have food, but the TV does not respond:
- Turn off the TV for 1 minute, then plug it back in.
- Press and hold the Power button on the TV body (not the remote!) for 15-20 seconds.
- If there is a reaction (the color of the indicator has changed, the sound has appeared), but the image does not appear - the problem is in the matrix or mainboard.
⚠️ Warning: If after power manipulations the TV is squeaking or crackling, immediately disconnect it from the network! This is a sign of a short circuit in the power supply - further attempts to turn on may lead to a fire.
2. Black screen: matrix, backlight or firmware?
A black screen when sound is working is a classic symptom of backlight or matrix problems.
| Symptoms. | Probable cause | Decision |
|---|---|---|
| The screen is black, but in bright light you can see a dim image. | Malfunction LED-lighting | Replacement of lighting (requires disassembly) |
| The screen is black, there is sound, the indicator is burning white. | Failure of firmware or graphics chip | Reset to factory settings or flashing |
| Black screen, no sound, light flashes red | Problem with mainboard or power supply | Diagnostics in the service |
| The screen is black, but after heating (dryer) the image appears. | Cold soldering of a graphics chip or matrix contacts | Splintering of chips or plumes |
🔦 How to check the lighting without disassembly:
- Turn on the TV in the dark.
- Hold the flashlight to the screen at an angle of 45.°.
- If you see a dim image, the problem is the backlight, and if the screen is completely black, it's the matrix or the mainboard.
What to do if the lighting flickers
⚡ Quick solution for firmware failure:
Turn off the TV.|Press and hold the Menu button on the body.|Connect the power without releasing the button|Wait for the recovery menu to appear|Choose Wipe. Data/Factory Reset-->
3. Xiaomi TV does not respond to the remote: what to do
If the TV is turned on but does not respond to the remote, the problem may be:
- 📶 Remote DU: batteries discharged, damaged IR emitter.
- 📡 Television receiver (contaminated or damaged).
- 🤖 Software failure (for example, after software update).
🔍 Diagnostics:
- Check the batteries in the remote (even if they are “nearly new” – replace them with new ones).
- Point your smartphone camera at the remote's IR emitter and press any button, and if you see a flicker in the camera, the remote is good.
- Try to control the TV through the Mi Remote app (available for the user). Android/iOS). If it works, the problem is in the physical remote.
🛠️ Decisions:
- 🧹 Clean the IR receiver on the TV with a cotton swab soaked in alcohol.
- 🔄 Reboot the TV: disconnect from the network for 1 minute.
- 📱 Use your smartphone as a remote: install Mi Remote and connect to the Wi-Fi/Bluetooth.
- 🔧 Reset the remote settings: press the Menu buttons + OK 5 seconds (for some models).
⚠️ Warning: If the TV only responds to buttons on the body, but not to the remote and the application, this may indicate a failure. Bluetooth/Wi-Fi In this case, only flashing or replacing the module will help.
4. firmware failures: how to reflash the Xiaomi TV
Incorrect software updates are a common cause of "bricking" of Xiaomi TVs.
- 🖥️ TV hangs on Mi logo.
- 🔄 Cyclical reboot (infinite reboot).
- ❌ Errors like "No signal" or "System" UI stopped".
📌 Official Recovery Methods:
- Through USB (for most models: Download the firmware for your model from the official Xiaomi website. ZIP-archive and copy the file update.zip flash-drive (FAT32). Insert the flash drive into the TV, pinch the Menu + Power on the case, turn on power.
Through Fastboot.
fastboot flash recovery recovery.img
fastboot flash boot boot.img
fastboot rebootRequires PC, cable USB-A → USB-A and unlocked loader.
🔧 Alternative method (if the TV is turned on but is glitchy):
- Go to Settings → About TV → System Update.
- Select Local Update and specify the path to update.zip flash-drive.
- Wait until the TV is finished (don’t turn off the TV!).
💡
If after the update the sound or image disappeared, try resetting the sound settings: go to Settings → Sound. → Resetting audio settings. This often helps with codec conflicts.
5. Problems with HDMI and external devices
If the Xiaomi TV doesn’t see the console, computer or sound system through the HDMI, check:
- 🔌 Cable HDMI: Try another cable (preferably High Speed) HDMI 2.0 4K).
- 📺 Port port HDMI: Connect the device to another port on the TV.
- 🔄 Signal Source: Press the Source (or Input) button on the remote and select the desired one. HDMI-port.
- 🖥️ Resolution of external device: on a PC or console, set the permission 1920×1080@60Hz (Sometimes the TV doesn’t support non-standard modes).
🛠️ Solutions for common problems:
| Problem. | Reason. | Decision |
|---|---|---|
| No image, no sound. | Incompatible regime HDMI slug-in | Switch permissions on the source device or replace the cable |
| The TV can't see. HDMI-device | Port disabled in settings or software failure | Reset the settings. HDMI: Settings → HDMI → Reset HDMI-port |
| Twinkling or artifacts on screen | Problems with HDCP (contention) | Turn it off. HDCP In the source device settings or use another port |
🔍 How to turn on the developer mode for diagnosis HDMI:
- Go to Settings. → On TV.
- Find the item Android version TV and click on it 7 times in a row.
- Back to Settings → For developers and enable debugging by HDMI.
⚠️ Attention: If Xiaomi TV TV A Pro doesn't recognize. NVIDIA Shield or Apple TV 4K, Update the TV firmware to version 1.7.65+. In earlier versions, there is a bug with support for Dolby Vision through HDMI.
6. Xiaomi TV does not connect to Wi-Fi
Wi-Fi issues on Xiaomi TVs are usually related to:
- 📶 Incorrect router settings (for example, hidden router) SSID or incompatible Wi-Fi standard).
- 🔄 Network module failure after update.
- 🛡️ Blocking. MAC-router.
🔧 Step-by-step instructions for elimination:
- Restart the router (turn off power for 30 seconds).
- On the TV, go to Settings. → Network → Forget the network and connect again.
- If Wi-Fi does not find a network: Check that the router is running in mode 802.11n/ac (not ax - some Xiaomi models don't support it. 2.4/5 GHz).
Settings → Network → Add the network manually
Enter SSID and password, select security type (WPA2-PSK)📡 Alternative ways of connecting:
- 🔌 Ethernet: If Wi-Fi is not working, use cable (speed and stability will be higher).
- 📱 Smartphone Access Point: Check if the TV is connected to the mobile Internet.
- 🔄 Resetting network settings: Settings → Network → Resetting network parameters.
💡
If the TV is connected to Wi-Fi, but the Internet is not working, check the settings. DNS. Manually indicate DNS Google: 8.8.8.8 and 8.8.4.4 in network settings.
7. Hardware breakdowns: when you need a service
Some faults cannot be repaired by yourself without special equipment.
- 🔥 The TV smells like a burn or there are traces of melting on the case.
- 💥 Broken matrix (cracks, broken glass, leaking liquid into the OLED-model).
- ⚡ The backlight does not work (the screen is not visible even in bright lighting).
- 🔊 No sound in all sources (including: HDMI and TV-tuner).
- 🖥️ The TV does not turn on even after the replacement of the power supply and reset.
📌 Average repair prices (2026):
| Breakdown | Cost of repair (₽) | Date(s) |
|---|---|---|
| Replacement of the power supply | 2 500 – 4 000 | 1–2 |
| Illumination repair (replacement) LED-ribbon) | 3 000 – 6 000 | 2–3 |
| Replacement of the matrix (43–55) | 8 000 – 15 000 | 3–5 |
| Graphics chip soldering | 4 000 – 7 000 | 2–4 |
| Replacement of the mainboard | 10 000 – 20 000 | 5–7 |
⚠️ How to choose a service center:
- 🔍 Check reviews on Yandex.Maps or 2GIS (especially pay attention to complaints about "loss of data" or "additional work").
- 📄 Check if you have a warranty for repairs (at least 3 months).
- 💰 If repairs cost more than 50% of the price of a new TV, it makes sense to consider buying a new model.
⚠️ Warning: If the TV is warranty (usually 1-2 years), don't disassemble it yourself! this will void the warranty.
8. Prevention: How to avoid breakdowns
To make Xiaomi TV last longer, follow the following simple rules:
- ⚡ Use a network filter: it will protect against voltage surges (especially important for homes with old wiring).
- 🌡️ Avoid overheating: do not put the TV in closed niches, provide a gap of 10-15 cm for ventilation.
- 🔄 Update your firmware regularly, but not via mobile internet (risk of communication breakdown).
- 🧹 Clean the ports of dust every 6 months (use a spray of compressed air).
- 🛡️ Do not install applications from unknown sources – they may contain malfunctioning viruses.
📅 Maintenance schedule:
| Action. | Frequency | Note |
|---|---|---|
| Cleaning ports of dust | Every 6 months | Use a soft brush or compressed air |
| Verification of software updates | Once a month | Upgrade only with stable Wi-Fi |
| Screen calibration | Once a year. | Use the built-in image settings menu |
| Checking of anchorages (wall) | Once in 3 months | Especially important for TVs 55 and more |
💡
If you rarely watch TV, disconnect it from the network overnight, which will prolong the life of the capacitors in the power supply and reduce the risk of overheating.