Xiaomi TV itself reboots: 12 reasons and how to fix the problem

You’ve played your favorite series, but Xiaomi Mi TV Did it suddenly turn off and start rebooting? Or did the TV cycle into a reboot every time it was released? 5–30 It's a problem that happens in Mi models. TV 4A/4S/4X/5/5X/6, Redmi Smart TV And even the flagship Xiaomi OLED Vision. 80% In some cases, it is not hardware failures that are to blame, but software failures – and they can be eliminated independently.

In this article, we will analyze all possible causes of spontaneous reboots - from banal overheating to hidden firmware bugs, as well as give step-by-step instructions with photos and videos (where necessary). TV 9-12 and the iron platform Amlogic. If your TV is guaranteed, do not rush to bring it to the service: 9 out of 10 cases are solved without repair.

1.Overheating: Why Xiaomi is turning off and rebooting

The most common cause of spontaneous reboots is overheating of the motherboard or power supply. In Xiaomi TVs with a diagonal of 43-65 inches, the protection system works at a temperature. ≥85°C, forcefully shutting down the device. If cooling is insufficient, the cycle repeats.

How to check:

• 🔥 Touch the back of the TV after turning it off – if it’s hot (especially around the vents), the cooling problem is a problem.
• 📺 Look at the indicator: if after rebooting it flashes red 3 times, it is an overheating error code.
• 🕒 Time: Reboots more often occur after 1-2 hours of operation.

Decisions:

• 🪟 Improve ventilation: Remove the TV from the wall (minimum 10 cm), remove decorative panels if they block the holes.
• 🧹 Clean the dust inside (neatly with a vacuum cleaner at minimum power or brush). TV 4S 55" dust accumulates at the processor radiator.
• 🔧 Replace the thermopaste (for advanced users) for the service, it costs 1,500-2,500 ₽.

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If the TV is hanging on the bracket, check if the back is covered by a wall or furniture. Even 5 cm of gap can be enough for normal cooling.

2. firmware problems: bugs and updates

The second most common cause is software failures. - Xiaomi Android TVs TV suffer:

• 🐞 Firmware bugs (especially relevant for versions) MIUI TV 3.0-4.5). For example, in Mi TV 5 Pro was a critical error with HDMI-CEC, rebuttal.
• 🔄 Unsuccessful updates to the air" (OTA), When the files are downloaded with an error.
• 🗑️ Clogged cache of system applications (especially com.xiaomi.mitv.system).

How to diagnose:

1. Check the version of the software in Settings → On TV. → Version. MIUI TV.
2. If the version is older 3.5.1 (for Mi TV 4A/4S) or 4.2.1 (for Mi TV 5/6) — renewal.
3. Start the TV in Safe Mode (hold Menu) + Volume Down when turned on. If the reboots stopped, it's the software's fault.

Decisions:

Reset the settings to factory (Settings → System → Reset)

Clear the application cache (Settings) → Annexes → Application management → Clear the cache)

Manually update the software through USB (guideline)

Remove firmware to stable version (if the update caused a bug)-->

3. Power supply malfunctions

If the Xiaomi TV reboots immediately after turning on or when plugged into a power outlet, the problem may be in the power supply (PD).

• 🔌 The TV turns on, but after 2-5 seconds it turns off.
• 💡 The indicator flashes orange or does not burn at all.
• 🔊 You can hear clicks or crackling from the back panel.

Reasons:

• 🔋 Bloated capacitors in the power supply (a frequent problem in Mi) TV 4A 2018-2019).
• 🔌 Voltage surges in the network (if there is no stabilizer).
• 🔌 Oxidation of contacts on the BP board.

What to do:

1. Check the power supply visually: if the capacitors are swollen (the upper part of the convex) - a replacement is required.
2. Connect the TV through the voltage stabilizer (even if there were no jumps - prevention).
3. Try another power cable (sometimes the problem is it).

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If the TV doesn't turn on at all (even the indicator doesn't burn), don't try to repair the power supply yourself - there's a high risk of electric shock.

4. Conflicts with connected devices

Sometimes, Xiaomi TVs reboot due to incompatibility with external devices:

• 🎮 Game consoles (PS5, Xbox Series X) can cause reboots when turned on HDR or 4K@120Hz.
• 💻 Laptop/PC via HDMI — If the screen resolution exceeds the TV’s capabilities (for example, 3840×2160@60Hz on Mi TV 4A, supportive 4K@30Hz).
• 📶 Wi-Fi routers with enabled 802.11r (Fast Roaming – a famous bug in the MIUI TV 4.x.

How to check:

1. Disconnect all devices from HDMI and USB-port.
2. If the reboots have stopped, connect the devices one by one to identify the “culprit”.
3. For gaming consoles, try disabling Dolby Vision and switching to RGB-mode (in settings) PS5/Xbox).

Game console (PS/Xbox)

Laptop or PC

Sound panel or receiver

Wi-Fi router via Ethernet

Nothing's connected.-->

Memory failure (eMMC)

Xiaomi TVs use built-in eMMC memory, which wears out over time. If the memory cells start to crumble, the system may accidentally reboot when addressing the damaged sectors.

• 🖥️ The TV "hang" on the Mi logo, then rebooted.
• 📁 Applications suddenly close or fail to open.
• ⚠️ In the system logs (if available) errors of the form E:failed to mount /data.

Decisions:

• 🔄 Reset the settings to factory (this will clear the damaged cache data).
• 🛠️ Fastboot TV (instructions for advanced users below).
• 💾 If the memory is critically damaged, the eMMC chip must be replaced (in the service 3000-5000). ₽).

6. Problems with remote control or IR port

Rarely, but it happens: the TV reboots because of a malfunction of the IR receiver or remote control.

• 🎛️ Remote sends false signals (due to damage or discharged batteries).
• 📶 Interference from other IR devices (air conditioning, music center).
• 🔄 In firmware bug with command processing (relevant to Redmi Smart) TV A65).

How to check:

1. Remove the batteries from the remote for 10 minutes – if the reboots stop, the problem is in it.
2. Try to control the TV through the Mi Remote app (if the reboots continue, the remote is not to blame).
3. Check if the TV receiver is not directed to the IR light from the lamps or the sun (this can cause false positives).

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If the TV only restarts when you press certain buttons on the remote (for example, Volume Up), try resetting the remote: press Menu. + OK 10 seconds.

7. Hardware breakdowns: when you need help from the service

If none of these methods worked, the problem could be in the hardware:

• 🔧 Faulty motherboard (often after voltage surges).
• 🔌 Problems with the power connector (oxidation, break of contacts).
• 🖥️ Failure of the processor (e.g., Amlogic) T962 mi TV 4S).

Signs of hardware breakdown:

• The TV does not turn on at all (even the indicator does not blink).
• Reboots are accompanied by extraneous sounds (squeaking, crackling).
• Artifacts (strips, flickering) appear on the screen before turning off.

Cost of repair in the service:

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Before you take your TV to the service, take a picture or video of the problem (how it reboots) to help the wizard diagnose the malfunction faster.

8.Prevention: How to Prevent Reboots in the Future

To ensure that the Xiaomi TV is stable:

• 🔄 Update your firmware regularly (but not immediately after release – wait 1-2 weeks until critical bugs are detected).
• 🧹 Clean the TV every 6 months (especially if it is on an open shelf).
• 🔌 Use a network filter or voltage stabilizer.
• 📱 Do not install applications from unknown sources – they may contain malfunctioning viruses.
• 🔋 Do not turn off the TV while working – this can damage the file system.

For Mi models TV 5/6 and OLED Vision is additionally:

• 🎮 Turn off automatic mode. HDR in the screen settings if you play on the console.
• 📶 Use Ethernet Cable instead of Wi-Fi for a stable Internet connection.

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If your TV is warranty-free, don’t try to repair it yourself – this will void the warranty.

FAQ: Frequent questions about Xiaomi reboots TV