Xiaomi phone reboots itself: all the reasons and what to do in 2026

Your Xiaomi or Redmi has suddenly rebooted for no apparent reason?This is one of the most common problems with the brand’s smartphones, which can occur as new models (Xiaomi 14, Redmi Note 13 Pro).+), And on devices 2018-2022 (Redmi Note 9 Pro, POCO X3). In 80% of cases, it is not the hardware that is to blame, but software failures, but the problem cannot be ignored: constant reboots accelerate battery wear and can lead to complete data loss.

In this article, we’ll look at all the possible causes of spontaneous reboots, from trivial overheating to hidden motherboard defects. You’ll learn how to diagnose a problem yourself (including hidden system logs), which settings to check first, and when to exactly bring the phone to the service. For convenience, we’ve compiled step-by-step instructions with screenshots and videos, as well as a compatibility table for different Xiaomi models.

If the phone only reboots when specific actions are taken (e.g., while calling or when connecting to Wi-Fi), skip the general sections and go straight to the specialized recommendations. For owners of devices with unlocked bootloader (unlocked bootloader) added a separate unit with advanced diagnosis through the ADB and Fastboot.

1. Software failures: viruses, updates and “curved” firmware

In 60% of cases, Xiaomi’s phone reboots due to software bugs.

• 🦠 Virus or malware masquerading as a system process (often found after installing apcs from unknown sources).
• 🔄 Failed update MIUI — Especially relevant for beta versions or firmware through OTA interrupted.
• 📱 Application conflict, where two programs are trying to manage the same resources at the same time (e.g., antivirus) + optimizer).
• 🗑️ Overflowing cache or corrupted files in the section /data, which the system cannot properly handle.

The first thing you need to do is check the reboot log.

1. Open the Security app (shield icon).
2. Go to Memory Management. → Journal of applications.
3. Look for records with a reboot or system crash tag in the last 24 hours.

If the logs show that the reboot occurs after a specific application is launched (for example, Facebook or Tinkoff Bank), try:

• Update the problem app to the latest version.
• Clear his cache in Settings → Annexes → [name] → Memory.
• Remove and install (pre-save data).

⚠️ Note: If the phone only reboots when connected to the computer, the problem may be in the drivers MTP or conflict with antivirus on your PC. Try connecting to another device or using mode PTP (photo-transmitter).

2.Overheating: Why Xiaomi turns off when loaded

Xiaomi smartphones (especially the budget Redmi series and the POCO) They are prone to overheating because of:

• 🔥 Clogging of ventilation holes with dust (relevant for devices older than 2 years).
• 🎮 Long-term gaming sessions with Turbo mode enabled (e.g. Genshin Impact or Call of Duty Mobile).
• ☀️ Direct sunlight or using your phone in hot climates (temperatures higher) +35°C).
• 🔋 A faulty battery that heats up even with minimal load.

To check the temperature of the processor:

1. Install the AIDA64 or CPU Monitor app.
2. Run a load test (such as rendering) 3D-charting).
3. If the temperature is above 70°C, emergency reset is triggered.

Decisions:

• Clean the charging connector and vents with compressed air (do not use wet wipes!).
• Turn off improved performance in Settings → Battery → Performance mode.
• Use heat sink covers (e.g. Xiaomi Cooling Backplate).
• If the phone heats up even in simple - replace the thermopaste (in the service it is worth it). ~1 500 ₽).

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If the phone only reboots when charging, try using Xiaomi’s original 33W power supply. Cheap charging often causes power surges, which the system perceives as a critical error.

3. Battery problems: bloating, wear, poor quality parts

The battery is the most vulnerable part of Xiaomi smartphones, with an average lifespan of 2-3 years, after which capacity drops by 30-40% and the controller starts to fail.

• 🔋 The phone turns off at 20-30% charge, although the indicator shows a normal level.
• 🔄 Reboots occur when connecting / disabling charging.
• 📉 In AccuBattery, it is clear that the real capacity is less than 80% of the factory capacity.
• 💥 The body of the phone is swollen (swipe your hand over the back cover - if there are bulges, immediately turn off the device!).

How to check the status of the battery without indiscriminate:

1. Enter the code ##4636## in the phone application.
2. Select Battery Information.
3. If it's below good, the battery needs to be replaced.

If the battery is swelling:

⚠️ Warning: Do not attempt to pierce or bend a bloated battery under any circumstances, as this may cause a fire or explosion. SIM-Average cost of battery replacement in Xiaomi is between 2,000 and 5,000 ₽ (model-wise).

4. Firmware conflicts: MIUI, custom ROM bootloop

If Xiaomi phone only loads before logo MI And it's rebooted right away (called bootloop), and it's the firmware that's to blame:

• 🔧 Failed updates through OTA (For example, if the battery is running during installation).
• 📱 Install custom firmware (LineageOS, Pixel Experience) without compatibility check.
• 🔓 Unlocking the bootloader in violation of the official procedure.
• 🛠️ Recovery with Mi Flash Tool with the Wrong Version MIUI.

How to get out of bootloop:

Turn off the phone (press the power button on 10).+ seconds)|

Connect to your PC and start the Mi Flash Tool|

Choose a firmware for your model (for example, fastboot_vayu_global_images... for POCO X3)|

Press Clean All and wait until it is completed (10-15 minutes)|

Don't turn it off. USB before the green tick-->

If you have an unlocked bootloader, you can try reflashing the phone through TWRP:

fastboot flash recovery twrp.img


fastboot boot twrp.img




adb sideload rom.zip

⚠️ Attention: Fastboot firmware erases all data! If your phone had important files, try extracting them first ADB pull /sdcard (If the system is only temporarily loaded).

5. Hardware malfunctions: motherboard, plumes, power button

If all the software methods have been tried and the Xiaomi phone is still restarting, the problem is the hardware.

• 📱 Oxidation or breakage of battery plume (often after falling or getting moisture).
• 🔌 Power button malfunction – the phone perceives random taps as a command to reboot.
• 🛠️ A motherboard defect (for example, a detached memory chip or a burned-out power controller).
• 🌊 Corrosion after fluid hits (even if the phone didn't sink, moisture could have penetrated through a microphone or speaker).

Self-diagnosis:

1. Check the power button: press it several times – if you hear a crunch or backlash, it must be replaced.
2. Check the charging connector: illuminate with a flashlight - if oxides are visible (green or white), cleaning with alcohol is required.
3. Shake the phone: If something rattles inside, the board element (such as a vibrator) has probably fallen off.

Cost of repair in the service:

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If the phone only reboots when it's vibrating (call, notification), there's a 90% chance that the vibrator has detached, and it'll cost 800 to 1500 to replace it. ₽.

Conflicts with SIM-map

It is rare, but it happens that Xiaomi phone reboots due to problems with the mobile network.

• 📶 SIM-card damaged (e.g., bent contact or microcrack).
• 🔄 There is a constant reconnection to the network (for example, with a weak signal). 4G/5G).
• 📡 Operator settings are updated (sometimes this causes a failure in the communication module).

How to check:

1. Extract. SIM-If you've stopped rebooting, you've got a problem with the map.
2. Try another one. SIM (For example, from another operator).
3. Turn off automatic network selection in Settings → SIM-maps and mobile networks → Selecting a network and selecting an operator manually.

If the phone only restarts when you call, try:

• Turn off VoLTE in Settings → SIM-map → Challenges through VoLTE.
• Reset network settings: Settings → System → Settings Reset → Reset settings Wi-Fi, mobile network and Bluetooth.
• Update the firmware of the communication module (if available for your model).

7.When to contact the service: checklist before the visit

If you've tried all the methods in this article, but the Xiaomi phone is still rebooting, it's time to bring it to the service center.

Make a backup of your data (via Mi Cloud or ADB)|

Write it down. IMEI (dial *#06#)|

Find out the exact phone model (in settings or on the box)|

Check if the warranty period has expired (usually 12 months for Russia)|

Take a picture of all external damage (cracks, chips)-->

Cost of diagnostics in official Xiaomi services – 500-1 500 ₽. If the phone is warranty, repairs can be free (for example, in factory defects of fees:

• Mechanical damage (falls, impacts).
• Liquid intake (even if there are no visible traces).
• Installation of unofficial firmware.

Official Xiaomi service centers in Russia (2026):

• 📍 Moscow: 16 Leo Tolstoy St. (at the Atrium shopping center»).
• 📍 St. Petersburg: Ligovsky Prospect., 108/110 (at the "Svyazhen" store»).
• 📍 Regions: Addresses can be specified on the website mi.com/ru/service/location.

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If you are offered a replacement of the mother fee for 10 000+ ₽, Try to get a second opinion on another service, and often under the burnt-out board is a trivial plume cliff that can be repaired for 1,500 dollars. ₽.

FAQ: Frequent questions about Xiaomi reboots