Xiaomi projectors are smart devices that combine high performance and complex firmware. Like any Android TV or proprietary OS, they sometimes crash: they hang on the logo, do not respond to the remote or refuse to turn on. 80% of the time, the problem is solved by a banal reboot, but not all users know how to do it correctly — especially when the screen is black and the buttons do not work.
In this article, we will discuss all possible ways to reboot Xiaomi projectors (including Mi Smart Projector 2/2 Pro, Mijia Laser Projector, Xiaomi Cinema Projector and others).
- 🔄 Soft reboot – when the projector responds to commands but is not running smoothly.
- ⚡ Hard reset – if the device is completely got stuck or not turned on.
- ⚙️ Hidden service combinations for diagnosis and recovery.
- ❌ Common errors that may make the problem worse (such as interrupting an update).
We will also discuss what to do if the reboot did not help – from checking the power supply to flashing through ADB.
1.Soft reboot: when the projector responds to commands
If Xiaomi projector turns on but slows down, freezes on load or displays an image incorrectly, try a soft restart first. This method is safe and does not lead to data loss (save settings, applications and files will remain in place).
Methods of soft reboot:
- 📱 Using the remote: press the Power button for 5-7 seconds until the projector starts to restart. On some models (for example, Mi Smart Projector 2 Pro) you may need to hold the button until the menu with the Restart option appears.
- 🖱️ Through the Settings menu: go to Settings → The device → Reboot (the path may differ depending on the firmware version).
- 🔌 Short-term power outage: pull the cord out of the socket for 10 to 15 seconds, then reconnect. This method works even if the remote doesn't respond.
If the projector freezes again after a soft reboot, the problem may be overheating (especially for lamp models) or damaged firmware, in which case you move to a hard reset.
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On Android TV models (such as Mi Projector 2) check the memory space before rebooting. A filled storage often causes lags. Go to Settings → Storage to do this.
Hard Reset: If the projector does not react
Hard reset is a forced reset that resets all temporary data (cache, user session) but does not affect personal files.
- 🖥️ The projector hangs on the Xiaomi logo or MIUI TV.
- 🔄 The remote and touch buttons on the body do not work.
- 📵 The screen is black, but the fan is noisy (a sign that the device is on, but does not display the image).
Hard-dumping instructions:
- Disconnect the projector from the network (remove the power cord).
- Press and hold the power button on the case (not on the remote!).
- Without releasing the button, plug the power cord back in.
- Hold the button for another 10-15 seconds until the Xiaomi logo appears or the indicator blinks.
Laser projectors (e.g. Mijia Laser Projector 1S) may need to press the button combination: Power + Menu or Power + Volume Down.
Disconnect the projector from the socket
Find the power button on the case (not on the remote!)
Prepare a timer (hold 10-15 seconds)
Check that the power indicator flashes (a sign of a successful reset)-->
3. Reset to factory settings: when rebooting doesn't help
If Xiaomi’s projector continues to glitch after the reboot (e.g., doesn’t connect to Wi-Fi, slows down the interface, or issues application errors), it may need a complete factory reset, which removes all user data, including:
- 📁 Installed Annexes (except pre-installed Annexes).
- 🔐 Google Accounts, Mi Accounts and Others.
- ⚙️ Individual settings (brightness, sound, network).
How to reset Xiaomi projector to factory settings:
- If the projector is turned on: Go to Settings → The device → Settings reset. Select Delete All Data (or Factory Data Reset). Confirm the action (may require input) PIN-code).
- If the projector is not turned on or freezes: Press the Power + Volume Up on the 10 Seconds (for models with volume buttons) Recovery Mode menu should appear on the screen. Data/Factory Reset using volume buttons and confirm with the power button.
What happens after the dump?
Attention! On some models (e.g. Mi Laser Projector), a factory reset may block access to Mi Home or Google Assistant features if the device was linked to an account, in which case a reset will require re-authorization.
4.Diagnostics of problems after reboot
If the Xiaomi projector has rebooted, but the problem persists, a diagnosis is needed. Below are the tabled symptoms and their possible causes:
| Symptoms. | Possible cause | Decision |
|---|---|---|
| The projector is on, but the screen is black. | Laser/laser malfunction, damaged HDMI cable | Check the lamp for burnout, test another cable |
| Hanging on the Xiaomi logo | Damaged firmware, application conflict | Perform a reset to factory settings or reflash through ADB |
| The projector spontaneously shuts down | Overheating, malfunction of the power supply | Clean the vents, check the power supply multimeter |
| No sound when the image is working | Audio Driver Failure, Incorrect HDMI Settings | Reset the sound settings or update the firmware |
If the projector makes unusual sounds (squeaking, crackling, loud fan noise), this may indicate a mechanical malfunction (for example, lamp wear or dust entering the optics), in which case rebooting will not help - repair is required.
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If the projector is unstable after rebooting (for example, periodically brakes), check the temperature of the case. Overheating is one of the most common causes of failures in Xiaomi projectors. The normal temperature of the case in the area of the ventilation holes is up to 40-45 ° C.
5. Flashing through ADB: The extreme method
If soft/hard reboot and resetting didn't help, the firmware might be damaged, and then flashing over the ADB (Android Debug Bridge) will help, a technique that is suitable for Android TV-based projectors like the Mi Smart Projector 2.
What will be required:
- 💻 Computer with installed ADB and Fastboot.
- 🔌 USB-Type C Cable (to connect projector to PC).
- 📁 Official firmware for your model (you can download it on the Xiaomi website).
Step-by-step:
- Connect the projector to the PC via USB.
- Open the command line and check the connection: Adb devices If the device is determined, you will see its serial number.
- Transfer the projector to Fastboot: adb reboot bootloader mode
- Sweep through the official firmware (example of command for Mi Projector 2): fastboot flashall (exact command depends on the model and firmware version)
⚠️ Attention! Wrong firmware can turn a projector into a brick. Use only official Xiaomi files for your model. If you are not sure about your actions, contact the service center.
6. Frequent reboot errors and how to avoid them
Many users are making Xiaomi projector problems worse by making common mistakes.
- 🔌 Pulling the power cord during firmware updates is almost guaranteed to damage system files.
- 🔧 Use unofficial firmware – it may contain viruses or be incompatible with iron.
- 💦 Vacuuming ventilation holes with a household vacuum cleaner - this can damage the fan blades.
- 🔋 Ignore overheating warnings – prolonged high-temperature operation reduces the life of the lamp/laser.
It is also not recommended:
- 📱 Pressing all buttons in a row in the hope that the projector will “suspend” – this can trigger unwanted functions (for example, resetting the network).
- 🔄 Often perform a hard reset - this increases the wear of flash memory.
⚠️ If the Xiaomi projector has failed to work after several attempts at reboot, do not disassemble it yourself - high-voltage components (especially in laser models) inside, which can be dangerous.