Xiaomi TV not turned on: full instructions for diagnosis and repair

You pressed the power button, but the screen of Xiaomi Mi TV or Redmi Smart TV is black? the indicator does not burn, flash or burn red? Don't panic - in 80% of cases, the problem can be solved without going to the service center. This article will help you understand why the TV does not start, and what to do depending on the symptoms.

We analyzed hundreds of cases with Mi TV 4A/4S/4X, Mi TV Q1/Q2, Redmi X50/X65 and other models to draw up a checklist of actions from the simplest (power check) to the most complex (flashing through ADB). Importantly, not all malfunctions require disassembly - often software failures or external factors are to blame.

1. Primary diagnosis: what to check first

Before you take apart a TV or search for a workshop, follow 5 simple steps that will take no more than 10 minutes, but will help rule out the obvious reasons:

• 🔌 Power: Check that the cable is plugged into the plug and the DC-IN connector on the back. Try another cable or socket -- sometimes the problem is oxidized contacts.
• 🔄 Hard reset: disconnect the TV for 30 seconds, then hold the power button on the case (not the remote!) for 15-20 seconds. This will reset the temporary errors.
• 📺 Indicator: If the light bulb flashes red 3 times in a row, it is the power supply error code (a common problem in Mi TV 4A 32"). If it does not burn at all, a chain break is possible.
• 🔋 Remote: Replace the batteries or check the remote through the smartphone camera (infrared signal should be visible as a blink).
• 🌡️ Overheating: If the TV is turned off and not on, let it cool for 1-2 hours. The vents should not be closed.

If the TV is still unresponsive after this manipulation, move on to the following sections. Note: indicator blinking is a diagnostic code. For example, Mi ZXQPH0000QXXZ P1 5 flashes indicate an eMMC problem, and 7 is a HDMI- port error.

Decoding the indicator blinking: what do the signals mean

The power indicator on the Xiaomi TV is your main diagnostic assistant, the number and color of blinkings correspond to specific malfunctions. Below is a table for popular models (relevant to the firmware MIUI TV 3.0+):

Important: If the indicator flashes white 2 times, this means a successful system boot, but the problem with the output of the image. Try to connect the TV to another signal source (for example, via AV- input) or check the brightness settings.

⚠️ Warning: If the TV clicks after it's turned on but doesn't start, immediately disconnect it from the mains! This is a sign of a power supply malfunction that could cause a fire.

3. Software glitches: how to restart the TV in emergency mode

If the Xiaomi TV doesn’t turn on, but the indicator flashes white (the system is trying to boot), it’s likely a software glitch is to blame.

• 🔄 Hanging after a firmware update (a common problem with Mi TV 4X when switching to MIUI TV 4.0).
• 🗑️ Cache overflow or damage to system files.
• 🛠️ Incorrect settings after resetting to factory.

In such cases, an emergency reboot or reset via Recovery Mode will help.

Hold the power button on the case for 30 seconds | Turn off power for 1 minute |Put the power on and immediately press the power button + volume button up (for models with remote control) |Please wait for the Mi logo to appear (may take up to 2 minutes)

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If the TV is loaded in Recovery Mode, select Wipe data/factory reset (use volume buttons for navigation and power button for confirmation) to delete all data, but return the workflow.

For models without physical buttons (e.g. Mi TV Q1 75)

1. Turn off the TV.
2. Press the Menu button on the remote and, holding it, connect the power.
3. Hold the button until the recovery menu appears (about 10-15 seconds).

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If after resetting the TV requires a password from the Mi Account, and you do not remember it – use the official unlock tool Xiaomi Unlock Tool (you will need confirmation by SMS or email).

4. Update firmware via USB: step-by-step instructions

If the TV is on but only loads to the Mi logo or is cyclically restarted, flashing it will help, which works for 90% of software failures.

• 🖥️ Computer with Internet access.
• 💾 USB-storage device FAT32, volume).
• 🔧 Screwdriver (for models with hidden USB- port on the motherboard).

Step 1. Download the firmware.

The official firmware for Xiaomi TV is available on Xiaomi's support website. Select your model (e.g. Mi TV 4S 55) and download the file with the.zip extension. Don't unpack the archive!

Step 2. Prepare. USB-accumulator

1. Format the flash drive in FAT32 (use the SD Formatter utility for reliability).
2. Create a folder called update (lowercase!).
3. Place the downloaded.zip file in this folder.

Step 3. Install the firmware

1. Turn off the TV.
2. Insert the USB 2.0 port (usually located on the side or back).
3. Press the Menu button on the remote and, holding it, connect the power.
4. Wait for the update menu to appear (it can take up to 5 minutes).
5. Select Update via USB and confirm the installation.

It's going to take 10 to 20 minutes to upgrade. Don't turn off the power. Once it's done, the TV will restart automatically.

5. Hardware malfunctions: when repairs are needed

If all software methods have been tried, but the Xiaomi TV still doesn’t turn on, the problem lies in the hardware.

• 🔌 Power supply: TV doesn't respond to power button, indicator doesn't burn. Common cause is bloated capacitors or fuse burned. Solution: replacement unit (cost ~2000-4000 ₽).
• 🖥️ Motherboard: TV is turned on but no image or sound, there may be problems with GPU, RAM or eMMC. Solution: diagnostics in service (repair costs 30-70% of the cost of the TV).
• 🔊 Screenlight: There's an image, but it's very dim, or it's only visible in bright light, it's the fault of the LEDs. Solution: Replacing the backlight tape (~5000-8000 ₽).
• 📶 Ports HDMI: TV turns on but doesn't detect connected devices, controller HDMI may be damaged, solution: port soldering or board replacement.

How to check the power supply yourself?

1. Turn off the TV and remove the back cover (a Torx T8/T10 screwdriver is required).
2. Examine the power supply for the presence of swollen capacitors, blackened tracks or the smell of burning.
3. Call the fuse with a multimeter (there should be resistance ~0 ohms).

⚠️ Warning: If you don't have experience with electronics, don't try to repair the power supply yourself! capacitors can retain charge even after being off the grid.

The cost of repair in the service center depends on the model:

• Mi TV 4A/4S: 1500–3500 ₽ (power supply replacement).
• Mi TV Q1/Q2: 3000–6000 ₽ (motherboard repairs).
• Redmi X50/X65: 2500–5000 ₽ (replacement of backlights or ports).

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If the TV is warranty (usually 1-2 years), don't disassemble it yourself! This will void the warranty. Contact the Xiaomi Authorized Service Center with a check and a warranty card.

6. Alternative recovery methods (for advanced users)

If standard methods don't work, you can try more complex recovery options, which require technical skills, but sometimes save the TV from recycling.

Method 1. Firmware via ADB (Android Debug Bridge)

Suitable for Android TV models (such as the Mi TV Q2 Pro).

• A computer with ADB drivers installed.
• USB-A cable – USB-A (to connect to a service port on the motherboard).
• Firmware in.img format (can be extracted from the official.zip archive).

Firmware commands:

adb devices


adb reboot bootloader




fastboot flash system system.img




fastboot reboot

Method 2: Replacement of the eMMC drive

If the TV makes a "No boot device" error or flashes red 5 times, the burnt memory chip is to blame. It can be replaced with a similar one (for example, Kingston EMTDC5A for Mi TV 4X).

1. Drink the old chip from the motherboard (use a hair dryer and soldering station).
2. Install a new chip and run it through the CH341A programmer.
3. Restore the firmware via USB (as described in Section 4).

Method 3: Use of the service menu

On some models (Mi TV P1), you can enter the hidden menu of engineering settings.

1. Turn off the TV.
2. Press the Menu + Volume Down buttons on the remote.
3. Connect the power and hold the buttons for 10 seconds.
4. From the menu, select Factory Reset or Test Pattern to diagnose the matrix.

⚠️ Warning: Incorrect actions on the service menu can permanently disable the TV. Change settings only if you are sure of their purpose!

7.Prevention: How to avoid breakdowns in the future

To make Xiaomi TV last longer, follow these guidelines:

• ⚡ Stable power: Use a network filter or uninterruptible power supply (UPS). Power surges are the main cause of power failures.
• 🌡️ Ventilation: Do not place the TV in niches or near heaters. Optimal operating temperature: +5°C to +35°C.
• 🔄 Updates: Install firmware only through official sources. Beta versions may contain critical bugs.
• 🛠️ Clean: Every 6 months remove dust from the vents with a vacuum cleaner (no disassembly!).
• 🔌 Cables: Do not bend power cables at right angles - this leads to cliff veins.

What can't be done:

• 🚫 Use non-original power supplies (even if they are "fit for performance").
• 🚫 Update the firmware at low battery charge (relevant for portable Mi TV Stick models).
• 🚫 Disassemble a TV without an antistatic bracelet - static electricity can damage the motherboard.

If the TV is rarely used (for example, in the country), turn it on once a month for 1-2 hours. This will prevent the oxidation of contacts and drying of capacitors.

Frequently Asked Questions (FAQ)