Xiaomi TV turned off and does not turn on: what to do in 2026

You turned on Xiaomi TV this morning, but the screen was black, the indicator was not flashing, and the remote and buttons on the body did not respond? This is a situation familiar to many owners of Mi TV, Redmi Smart TV and other models of the brand. The reasons can range from a banal firmware failure to serious hardware malfunctions. In 80% of cases, the device manages to “reanimate” yourself without the help of a service center.

In this article, we’ll look at all the possible reasons why Xiaomi TVs might not turn on, from a discharged capacitor to a damaged bootloader. You’ll get step-by-step instructions with menu photos, debugging commands via ADB, and a symptom table for quick diagnosis. Particular attention will be paid to Android TV models (e.g., Mi TV 4S, Mi TV Q1), where problems are often associated with system updates.

If your TV only turns on with the power button clamped down, but it turns off immediately, this is a sign of a damaged boot or recovery partition, a fault that can be fixed by flashing through USB-OTG, and we will show you how to do this without risking bricking the device.

1. Diagnostics problem: why Xiaomi TV doesn't turn on

Before you start repairing, you need to understand what exactly went wrong. Xiaomi TVs may not turn on for two main reasons:

• 🔌 Power problems -- faulty power supply, discharged capacitors, damaged cable.
• 🤖 Software failures — corrupted firmware, bootloader error, update conflict.
• 🔧 Hardware failures: motherboard failure, processor burnout, memory damage.

To narrow down the range of possible malfunctions, check the following points:

• 💡 Power indicator: Does it flash? If so, it's more of a software problem. If not, it's hardware.
• 🔊 On-set sounds: Do you hear the clicks of the relay or the squeak of the power supply? That could indicate a short circuit.
• 🔄 Reaction to remote: Try turning on the TV from different distances (sometimes the IR receiver fails).

If the Xiaomi TV turns on for 1-2 seconds and immediately turns off, this is a typical symptom of a damaged bootloader (uboot), in which case only flashing through USB-OTG or UART (for advanced users) will help.

2. Checking the power supply and cables: the first steps

Start with the simplest one, which is to look at the power supply and the connections, and 30 percent of the time, the TV doesn't turn on because of a simple power problem.

What to do:

1. Turn off the TV for 5 minutes, then reconnect, and sometimes it resets the power supply.
2. Check the power cable for damage (bending, melting) and try another cable.
3. Connect the TV to another outlet (preferably with grounding).
4. If you use a network filter or UPS, connect the TV directly to the outlet.

On Mi TV 4S and Redmi Smart TVs, the power supply often fails due to power surges, and if the TV is running after connecting to another outlet, the wiring or the network filter is a problem.

If the power indicator does not flash at all, it can mean:

• 🔋 Power supply is out (replacement needed).
• ⚡ The fuse on the motherboard has burned out.
• 🔌 The socket or cable is damaged.

⚠️ Warning: If the power supply smells like burns or shows bloated capacitors, don't turn on the TV! This can short circuit and damage the motherboard.

3. Resetting settings through buttons on the body

If the Xiaomi TV doesn’t respond to the remote, but the power indicator flashes, try a hardware reset.This helps with system freezes or firmware conflicts.

Instructions for most models:

1. Turn off the TV from the outlet.
2. Press and hold the Power button on the case (usually located on the side or bottom).
3. Without releasing the button, connect the TV to the outlet.
4. Hold the button for another 10-15 seconds until the Xiaomi logo or recovery menu appears.

On some models (e.g. Mi TV Q1), you need to hold down the Power + Volume button at the same time to reset, and if the TV is switched on after reset but is not stable, reset to factory settings via the menu:

Settings → Device → Reset → Reset to factory settings

If the hardware reset didn’t help and the TV still doesn’t turn on, move on to the next step – checking the firmware.

4. flashing over USB: recovery of the bootloader

If the Xiaomi TV turns on for a few seconds and turns off, or boots into an infinite loop (bootloop), the firmware is likely damaged, in which case flashing over USB-OTG will help.

What you need:

• 🖥️ The FAT32 drive up to 8 GB (better to use a new one).
• 📁 Official firmware for your model (you can download it on the Xiaomi website).
• 🔌 USB- externally powered hub (for some models).

Step-by-step:

1. Download the firmware for your model (for example, for Mi TV 4S 55" it will be a file mi_tv_4s_55_global_stable.zip).
2. Unpack the archive and copy the update.zip file to the root of the flash drive.
3. Rename the file to mi_tv_update.zip (important for some models!).
4. Disconnect the TV from the network, insert the flash drive into the USB-OTG port (usually marked as Service).
5. Press the power button on the case and connect the TV to the outlet.
6. Hold the button until the recovery menu appears (usually 10-20 seconds).
7. From the menu, select Update → Select update package → specify your firmware file.

It takes 5-10 minutes to update. Don't disconnect the TV from the network while you're running the firmware. Once it's done, the device will reboot automatically.

⚠️ Warning: If the TV is loaded into the Fastboot menu after the firmware is installed (black screen with the inscription). FASTBOOT MODE), so the firmware is not suitable for your model. Try another version or contact the service.

5. Advanced Methods: Debugging through ADB and UART

If standard flashing didn't work, you can try to restore the TV through ADB debugging mode or UART port, which will suit advanced users.

Recovery through ADB:

1. Connect the TV to your PC via USB-OTG.
2. Install Android Platform Tools.
3. Enter the command to check the connection: adb devices If the device is determined, perform: adb reboot recovery
4. From the recovery menu, select Apply update from ADB and swipe the file: adb sideload update.zip

Debugging through UART (for advanced):

If the TV is not detected by ADB, you can connect to it via UART-port (usually located on the motherboard).

• 🔧 USB-to-TTL adapter (e.g. CP2102).
• 🖥️ The program terminal (Putty, Screen).
• 🔍 Seeding iron (for connecting to contacts TX, RX, GND).

By connecting to UART, you can see the boot logs and manually enter commands to restore the boot, such as overwriting the boot partition:

fastboot flash boot boot.img


fastboot reboot

💡

If you don't have experience with a soldering iron, you'd better take no chances and go to the service. The wrong connection to UART can permanently put the TV out of order.

6. when you can not do without a service center

If none of these methods worked, it’s probably a hardware problem, in which case you should contact an authorized Xiaomi service center, and here are the signs that the TV needs professional repair:

• 🔥 You can see traces of burns or melted items on the board.
• 💥 The power supply is crackling or not showing signs of life.
• 🖥️ The TV is not detected via ADB or via Fastboot.
• 🔍 Artifacts (strips, flickering) appear on the screen even if the image is turned on.

Average cost of repair in the service:

Before you take your TV to the service, take a picture of all the stickers from the model and serial number – this will speed up the diagnosis, and check whether the warranty is valid (on most Xiaomi models it is 12 months).

💡

If the TV is guaranteed, do not try to disassemble it yourself - this will void the warranty obligations.

7.Prevention: How to avoid breakdowns in the future

To make Xiaomi TV last longer, follow these guidelines:

• ⚡ Use a voltage stabilizer or UPS — power surges most often disable the power supply.
• 🔄 Don't turn the TV off too often - this can damage the firmware.
• 📥 Update your software regularly, but don’t install beta versions of your firmware—they may contain critical bugs.
• 🌡️ Keep a watch on the temperature – do not place the TV in closed niches or near heat sources.
• 🛠️ Once every six months clean the ventilation holes from dust (you can vacuum at minimum power).

If you often experience freezes, try turning off automatic app updates:

Settings → Applications → Auto Update → Disable

It is also useful to clean the cache from time to time:

Settings → Storage → Cached data → Clean

💡

If the TV is slowing down but still turning on, back up your settings through Settings → Device → Backup. This will save your accounts and settings in case of a reset.

FAQ: Frequent questions about Xiaomi TV malfunctions