Your Xiaomi suddenly started rebooting for no apparent reason? The screen goes out, the MI logo appears, and the process repeats itself in a loop? This problem is familiar to many owners of the brand's smartphones - from budget Redmi to flagship Mi or POCO. In 80% of cases, it is not hardware breakdowns that are to blame, but software failures that can be fixed on their own.
We analyzed data from service centers and forums (including 4PDA, Mi Community, and XDA Developers) and identified 7 key causes of cyclic reboots. In this article, step-by-step instructions from simple (reboot in safe mode) to complex (fastboot reboot), and a symptom table that will help diagnose the problem in 2 minutes. If after all the manipulations the smartphone continues to βrequireβ, most likely it is a hardware malfunction, we will tell you how to check this and what to do next.
1. Why Xiaomi is rebooting on its own: top-7 cause
Cyclic reboots (or bootloops) rarely occur out of the blue, usually preceded by slowdowns, overheating, sudden shutdowns, or app errors.
- π Failed battery: bloating, wear and tear (>500 Charging cycles) or factory defects, especially for older models 2 years (Redmi Note) 4/5, Mi A1).
- π€ Firmware failure: a failed update MIUI, interrupted installation of custom firmware or conflict of core modules.
- π± Damaged motherboard: contact oxidation, microcracks after a fall or factory defect (often found in the POCO F1 mi 9T).
- π₯ CPU overheating: radiator clogging, thermal paste malfunction, or working in extreme temperatures (e.g. charging in the sun).
- π οΈ Application Conflict: Viruses, Incompatible APK System services (e.g. com.miui.analytics in older versions) MIUI).
- π‘ Problems with the communication module: modem malfunction (especially after updating the radio module).
- π Faulty charging port: contact oxidation or short circuit when cable is connected.
According to service center statistics, 65% of the time is due to firmware or battery, 20% to hardware damage, and only 15% to third-party applications.
| Type of reboot | Symptoms | Probable cause |
|---|---|---|
| Cyclical (bootloop) | The smartphone turns on, shows the MI logo, turns off and repeats the cycle | Firmware failure, damaged board |
| Accidental (1-2 times a day) | Reboot on load (games, camera) or without cause | Overheating, faulty battery |
| When charging. | Turns off/on when connecting the cable | Problems with port or power supply |
| After updating | Started restarting immediately after installation of MIUI | Incompatible firmware, update error |
β οΈ Note: If the smartphone is rebooted only when connected to the computer, the problem may be in the drivers ADB Or a cable. Try another. USB-port and disable debugging modes in Settings β For developers.
Quick Decisions: What to Do First
Before you bring your phone to the service, follow these steps, which will help in 40-50% of cases and do not require special skills.
Forced reboot your smartphone (clip Power + Volume up for 10-15 seconds)
Check the battery charge (plug in for 30 minutes)
Extract. SIM-card and memory card (if any)
Try charging with another cable and power supply
Refrigerate your phone (put it in the shade for 10 minutes if it's hot)-->
If after a forced reboot the smartphone turned on, check:
- Processor Temperature: Install the AIDA64 app and see the data in the Sensors section. Normal: up to 40-45Β°C in plain, up to 60-70Β°C under load.
- Battery status: in AIDA64, go to Battery β Status. If Health is below 80%, it's time to change the battery.
- Error Logs: Enter ##4636##, select Battery Information and check the Usage history section for emergency shutdowns.
If the smartphone does not turn on or immediately goes into the reboot cycle, move on to the next section.
Accidentally 1-2 times a day |Constantly (cycle) |Only when charging |After updating |Another option-->
3. Safe mode and diagnostics of applications
If the phone turns on but reboots after a while, the problem may be with third-party software.
- Press the power button until the shutdown menu appears.
- Press and hold the option βOffβ (or βRebootβ in new versions of MIUI).
- Confirm the transition to Safe Mode (at the bottom of the screen will appear the inscription Safe mode).
This mode only runs system applications, and if the reboots have stopped:
- π Remove recently installed programs (especially optimizers, antiviruses, or launchers).
- π Check the autoload list: Settings β Annexes β Auto-start.
- π Turn off Google Play Services (sometimes conflicting with Google Play Services) MIUI): Settings β Annexes β Application management β Google Play Services β Shut down.
If the problem persists, it's the system, not the software, and then resetting or flashing it will help.
π‘
Not all functions are running in safe mode (e.g. mobile internet may be disabled). To check the connection, connect to Wi-Fi.
4. Resetting: When and How to Do
Hard Reset removes all data from the phone, but 30 percent of the time solves the problem of cyclical reboots, and it's important that if the phone doesn't turn on or goes to the bootloop, you can reset it through Recovery Mode.
Method 1: Through the settings menu (if the phone is turned on):
- Go to Settings β About the phone β Reset settings.
- Choose to erase all data and confirm.
- Wait until it is completed (it will take 5-10 minutes).
Method 2: Recovery Mode (if the phone is not turned on):
- Turn off your smartphone (forced if necessary).
- Press Power + Volume up for 10 seconds until the Mi logo and Recovery menu appear.
- Select Wipe Data β Wipe All Data (control β volume buttons, confirmation β power button).
- After reset, select Reboot.
β οΈ Note: On some models (POCO X3, Redmi Note 10) may require a Mi Account to be reset via Recovery. If you don't remember the password, use the official Recovery Service.
If the reset didn't help, the problem is deeper - most likely firmware or hardware.
π‘
Resetting the settings will not help if the reason for the reboots is hardware (for example, a faulty battery or a damaged board).
5.Flashing: When it's the only way out
If the smartphone goes to the bootloop or reboots after reset, there are two options: reflash it via Fastboot or Recovery, which will require a computer, a USB Type-C cable and official firmware.
Step 1: Download the firmware
- π Official firmware for Xiaomi can be downloaded on the website MIUI Downloads.
- π Select your model (e.g. Redmi Note 9 Pro) β joyeuse).
- π₯ Download the latest stable version (Stable) in.tgz format (for Fastboot) or.zip (for Recovery) format).
Step 2: Fastboot Firmware (recommended)
- Unpack the.tgz archive in a folder on your computer.
- Install the Mi Flash Tool and ADB drivers (you can download here).
- Launch the Mi Flash Tool, connect the phone turned off to the PC in Fastboot mode (clip Power + Volume down).
- In the program, select the firmware folder and press Flash.
Step 3: Firmware through Recovery (if Fastboot doesn't work)
- Download the firmware in.zip format.
- Rename the file to update.zip and place it in the root of the memory card.
- Go to Recovery Mode (Power + Volume Up buttons).
- Select Install update.zip and confirm.
What if the Mi Flash Tool can't see the phone?
6 Hardware problems: when without service can not do
If all the software methods have been tried and the smartphone keeps rebooting, it's the hardware.
- π Battery: bloating, detachment of contacts or wear. Check if the back cover is playing - this is a sign of bloating.
- π± Motherboard: microcracks (especially after falls), contact oxidation or burnt-out elements (e.g, PMIC β power-train).
- π Charging port: oxidation or break of contacts. Check if the connector wobbles when the cable is connected.
- π₯ Overheating: If the phone is heated above 70Β°C and off, possible problems with the heatpast or radiator.
You can replace the battery or charging port yourself (if you have experience of soldering). For a diagnosis of the board, it is better to contact the service. Average repair prices (in Moscow, 2026):
| Type of repair | Cost (β½) | Date(s) |
|---|---|---|
| Battery replacement | 1 500 β 3 000 | 1 |
| Replacement of the charging port | 1 200 β 2 500 | 1β2 |
| Diagnostics of fees | 500 β 1 500 | 1 |
| PMIC/contact soldering | 3 000 β 8 000 | 2β5 |
| Replacement of motherboard | 5 000 β 15 000 | 3β7 |
β οΈ Warning: If the smartphone is swollen (back cover is raised, the screen is "going away"), do not try to turn it on or charge it - this can lead to fire. Immediately remove the battery (if available) or take it to the service.
7.Prevention: How to Avoid Resets in the Future
To minimize the risk of repeated failures, follow these guidelines:
- π Keep the battery from running too low (below 10%) and charge the phone at 20 to 80%.
- π± Update regularly MIUI, Do not install beta on the main phone.
- π₯ Avoid overheating: Do not play heavy games when charging, do not leave your phone in the sun.
- π‘οΈ Install a reliable antivirus (such as Bitdefender or Kaspersky) and check your files before installing.
- π‘ Do not use uncertified chargers (especially fast cables for 100)β½).
If you often install custom firmware, watch out for:
- Compatible with your model (check out XDA Developers).
- TWRP Recovery (should support your chipset)
- User reviews about the stability of the assembly.
π‘
To extend the life of the battery, turn off the Fast Charging function in the settings (Settings β Battery β Fast Charging).