Xiaomi is constantly rebooting: how to find and eliminate the cause

Your Xiaomi suddenly turns off and on at random moments? The screen goes out, the MI logo appears, and then the device loads again — and so on in a circle? This problem is familiar to many owners of smartphones brand, but its causes can be radically different, from harmless malfunction of the application to a serious malfunction of the motherboard. In 80% of cases, cyclic reboots are eliminated on their own, without contacting the service center, the main thing is to correctly diagnose the source of the problem.

In this article, we will examine all possible causes of spontaneous reboots on Xiaomi, Redmi and POCO smartphones – from new models (Xiaomi 14, Redmi Note 13 Pro+) to devices 2018-2020 (Mi 9, Redmi Note 8 Pro). You will learn how to distinguish a software failure from a hardware defect, what tests to conduct at home, and what to do if the phone reboots even after resetting. And for complex cases, we have prepared a unique table of symptoms with probable diagnoses – it will help narrow the search for a problem.

1. Software failures: firmware, applications and viruses

The most common cause of spontaneous reboots is errors in the MIUI operating system or conflicting applications, especially after firmware updates, pirated software installations, or virus infection.

• 📱 Unstable version MIUI: Beta firmware or fresh global updates often contain critical bugs that cause bootloop (a looped reboot). MIUI 14.0.4 for Redmi Note 11 was a bug with a display driver, which caused the device to go into a rebuke when the screen was locked.
• 🤖 Application conflict: Some programs (especially those with root rights or background activity) can cause a critical kernel error.Frequent culprits include Greenify, Tasker, pirated versions of Spotify or YouTube Premium.
• 🦠 Viruses and malware: Trojans like xHelper or Shuanet are able to modify system files, which leads to unstable operation. APK unverified.
• 🔄 Failure after the update: If the reboot began immediately after the update - the fault is "broken" firmware package or incorrect update through the update OTA (For example, when the Internet is broken).

How do you check? Run your phone in Safe Mode. If the reboots stop, it's a problem with third-party software. If it doesn't, it's the firmware or the hardware.

⚠️ Warning: If the phone only reboots when connected to a PC, the driver problem MTP faulty USB-Try another cable and port on your computer.

Hardware malfunctions: battery, board, plumes

If software methods have failed, the reason lies in hardware, hardware defects are more common on devices older than 2-3 years, but new smartphones are not insured, the main “hardware” culprits:

• 🔋 Worn or bloated battery: At critical wear (capacity) < 60%) the power controller can turn off the device for protection. Bloating the battery presses on the motherboard, causing short circuits.
• 🔌 Faulty charging connector: Oxidized contacts or mechanical damage USB-C port causes voltage surges to which the system reacts by rebooting.
• 🛠️ Motherboard problems: overheating of a chipset (Snapdragon or Mediatek), chip failure of memory or damage to power chains. POCO F3 known defect PMIC (Power controller, which causes the phone to turn off when loaded.
• 📱 Damaged display/battery plume: On models with removable cover (e.g. Redmi) 9A) plumes wear out over time, leading to loss of contact and rebuttals.

Diagnosis:

1. Check the battery through the engineering menu: type ##4636## → Battery information. If Health status shows Unknown or Dead, the battery is defective.
2. Light a flashlight into the charging connector: oxidation or bent contacts will be visible to the naked eye.
3. Touch the case after turning off: if it is hot (especially in the area of the processor) - overheating is possible due to a thermal paste or defect in the chipset.

3. Overheating and heat problems

Xiaomi smartphones on Qualcomm Snapdragon processors (such as the Snapdragon 8 Gen 2 in Xiaomi 13 Pro) are prone to overheating due to high performance. If the chipset temperature exceeds 85-90 ° C, the system forcibly reboots the cooling device.

• 🔥 Games or Hard Tasks: Genshin Impact, PUBG Mobile or video rendering in CapCut loads the processor 100%, resulting in trottling and reboots.
• ☀️ External conditions: Direct sunlight, heat (>30°C) or use of a cover to block the ventilation.
• 🧊 Cooling system malfunction: On models with liquid cooling (Xiaomi Black Shark) can leak a heat pipe, and on budget devices (Redmi) 10A) — heatpaste.

How do you check the temperature? Install an AIDA64 or CPU Monitor app and run a stress test. If the core temperature is above 95°C and the phone turns off, you need to clean or replace the thermal paste.

4. Resetting and flashing: when it helps

If the phone reboots randomly but logs in, try resetting to factory settings, which will delete all user data, but restore stability.

1. Make a backup through Settings → About Phone → Backup.
2. Go to Settings → Additional → Recovery and Reset.
3. Select Reset and confirm the action.

If the reset doesn't work, you'll need to flash it through Fastboot, which is a technique that's relevant for devices that:

• 🔄 Logo-obsessed. MI (bootloop);
• 📵 Not included after a failed update;
• 🔧 Have damaged system partitions.

You'll need firmware.

⚠️ Note: Fastboot erases all data, including photos in internal memory. If the phone sometimes turns on, copy files to your PC first. MTP Xiaomi PC Suite.

5. Diagnostics through engineering menu and logs

To determine the exact reason for reboots, use Xiaomi’s hidden tools:

1. Engineering menu: Enter ##4636## → Choose Battery Information and Usage. Check Partial Wake Lock (if there are apps, they block the device’s sleep) and Other Usage (a high Kernel percentage indicates a kernel failure).
2. Error Logs: Install Logcat Extreme or MatLog and log in during the reboot. Look for lines with E/AndroidRuntime, FATAL EXCEPTION or kernel panic.
3. Hardware Component Test: Enter ##6484## to run Manual Test Mode. Check all modules (display, touchscreen, vibration) If any test fails, there is a problem with hardware.

An example of a log decryption:

E/AndroidRuntime(1234): FATAL EXCEPTION: main


Process: com.miui.home, PID: 1234




java.lang.NullPointerException: Attempt to invoke virtual method on a null object reference




at com.miui.home.launcher.DevicePolicyManagerCompat.isLockTaskPermitted

This error indicates a failure in MIUI Launcher – reinstalling the shell or resetting settings will help.

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If the phone reboots when you call, check the IMEI via *#06#. If it shows Null/Invalid, the problem is in the communication module (possibly after the firmware crashed the NVRAM base).

6. When to contact the service center

If you've tried all the methods, but the phone is still rebooting, it's time to carry it for repair.

• 💥 The phone does not turn on at all (even after charging and trying to firmware);
• 🔥 The case is very hot even in simple (the risk of fire of the battery!);
• 🛠️ Artifacts (strips, flickering) appear on the screen before rebooting;
• 🔋 The battery swelled (sees the deformed cover);
• 📡 No network or IMEI dropped on 00000000.

Average repair prices in official Xiaomi services (2026):

⚠️ Warning: Don't trust repairs to unofficial workshops if they offer to "swipe your phone in 5 minutes." Often, such "specialists" use unlicensed firmware that leads to the blocking of your Mi Account account.

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If the phone is warranty, don't disassemble it yourself! Opening the case will void Xiaomi's warranty obligations.

7.Prevention: How to Avoid Resets in the Future

To minimize the risk of spontaneous reboots, follow these guidelines:

• 🔄 Update. MIUI Only through official channels (Settings) → System updates: Avoid custom firmware unless you are sure it is stable.
• 📵 Don’t use cheap charging, it can damage the power controller.Optimum: Xiaomi’s original Quick Charge-enabled units 3.0/4.0.
• 🧹 Clean the cache once a month through Settings → Warehouse → Clear the cache. This will prevent conflicts between applications.
• 🛡️ Install an antivirus (such as Malwarebytes or Bitdefender) and scan your system regularly.
• 🔋 Calibrate the battery once every 3 months: completely discharge the phone, then charge to 100% without interruptions.

For models with removable battery (Redmi 4X, Mi A1) check the contacts of the battery for oxidation - they can be cleaned gently with a stripe.

FAQ: Frequent questions about Xiaomi reboots