Xiaomi phone reboots itself: reasons and 10 working solutions

If your Xiaomi, Redmi or Poco smartphone suddenly starts to reboot for no apparent reason, it’s not just annoying, it’s also a signal of possible malfunctions, and this behavior can be caused by software failures (from conflicting applications to damaged firmware) and hardware problems (overheating, damaged battery or motherboard), and 80% of the time, you can solve the problem yourself without resorting to a service center, most importantly, correctly diagnose the source of the malfunction.

In this article, we will discuss all possible causes of spontaneous reboots on Xiaomi phones (including the Redmi Note models). 10/11/12, Poco X3/F3, Mi 11/12 And we'll give you step-by-step instructions for elimination, from basic checks to advanced methods like flashing through Fastboot. MIUI, which are often ignored even by experienced users, but which can dramatically affect the stability of the device.

1. Diagnostics the problem: why Xiaomi phone reboots itself

Before you start a repair, it is important to understand what exactly triggers the reboot. Here are the key points to pay attention to:

• 🔄 Reboot frequency: whether they occur under load (games, videos) or in standby mode?
• 🔥 Case temperature: Is the phone warming up before rebooting? this could indicate overheating of the processor or battery.
• 📱 Charging communication: Reboots only occur when connected to the charger?
• 🛠️ Recent changes: Updated firmware, installed new apps or dropped the phone?

If reboots occur regularly at regular intervals (e.g., every 10-15 minutes), this is often due to damage to system files or a failure in the memory module. If the phone turns off when it is heated (e.g., during games or charging), either the battery or the thermal paste on the processor is to blame.

2.Program causes: from application conflicts to MIUI failures

In 60 percent of cases, spontaneous rebukes are caused by software errors, and let's look at some of the most common scenarios and how to fix them.

Conflicting annexes

Some programs (especially optimizers, antiviruses, or aggressive autoboot games) can cause critical system errors that lead to a reboot to identify the culprit:

1. Launch your phone in Safe Mode (press the power button → long tap on "Switch off" → "Safe Mode").
2. If the reboots have stopped, the problem is with third-party software. Remove the newly installed applications.
3. Check the Settings. → Annexes → Permits → Autostart and disable autoboot for suspicious programs.

Remove the last 5 installed programs

Disable Auto-Run for All Optimizers and Antiviruses

Check the reviews on apps on Google Play (look for complaints about reboots)

Clear cache for all applications through Settings → Memory.-->

Failure to operate MIUI and system services

Firmware MIUI It's known for its "features," which sometimes work incorrectly:

• 🔄 Battery Optimization Service (Security Center) can aggressively close processes, causing a rebuke.
• 📱 System updates installed “by air" (OTA), sometimes contain bugs.
• 🛠️ Resetting settings to factory may not clean all system files, leaving "garbage".

To check it out:

1. Open Settings → About Phone → MIUI version and check the relevance of the firmware.
2. Turn off auto-optimization in Settings → Battery → Settings → Optimizing the battery.
3. Reset the settings for applications only (without deleting data) via Settings → System system → Additionally. → Resetting settings.

Hardware malfunctions: battery, overheating and damage

If the software methods didn't work, the problem is probably hardware. Let's look at the most vulnerable components.

Wear or damage to the battery

The battery is the first candidate for testing if the phone:

• 🔋 Reboots at a charge level below 20-30%.
• 🔥 Heated in the battery area (lower part of the body).
• ⚡ Turns off when connected to charging.

How to diagnose:

1. Check the status of the battery using code ##4636## → "Battery information. If the wear level exceeds 50%, the battery must be replaced.
2. Use the AccuBattery app (available on Google Play) to monitor battery health.
3. If the phone only reboots when charging, try another cable and power supply (preferably original).

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If the battery is swollen (the phone body is deformed), DO NOT try to use or charge it! It is dangerous - a bloated battery can ignite.

Overheating of the processor or memory module

Xiaomi phones on Snapdragon processors (e.g. Redmi Note 10 Pro with Snapdragon) 732G) They're prone to overheating when they're under intense load. Normal operating temperature, up to 45 to 50.°C. If it exceeds 60°C, emergency shutdown triggered.

How to check:

1. Install CPU Monitor or AIDA64 to monitor temperature.
2. If the phone is heated without a load, clean the charging and speaker connector from dust (use a soft brush or compressed air balloon).
3. Try to reduce productivity through Settings → Battery → Performance mode (select "Balanced" or "Energy Saving").

⚠️ Warning: If the phone restarts even after 5-10 minutes of downtime and the body is hot, this may indicate that the thermal paste has detached between the processor and the radiator.

Damage to motherboard or plumes

Physical damage (falls, moisture, contact corrosion) can cause short circuits or loss of communication between components, leading to sudden reboots.

• 📱 The phone reboots with a light press on the body (for example, in the area of the camera or buttons).
• 🔌 Artifacts appear on the screen before turning off.
• 💧 There have been contact with water (even if the phone hasn't sunk, humidity can cause oxidation).

What to do:

1. Visually inspect the phone for body bloating, corrosion or traces of liquid (spots under the screen, white plaque on the connectors).
2. If the phone falls, check the battery and display plume mounting - sometimes it's enough to reconnect them.
3. If you suspect moisture do not turn on the phone and contact the service center - self-drying with a hairdryer can aggravate damage.

Update and Flashing: When Needed

If all previous methods failed, two radical solutions remain: update the firmware (if the system bug is the problem) or complete firmware reflash (if the system files are corrupted).

Update MIUI through OTA

Sometimes reboots are caused by bugs in the current firmware version.

1. Go to Settings → About the phone → System update.
2. If the update is available, download it and install it. Don't interrupt the process - this can lead to a "brick" (complete failure) of the phone.
3. After the update, reset the cache via Recovery (turn off the phone, pinch the power supply). + Volume up, select Wipe Cache).

4.2 Clean firmware installation via Fastboot

If the phone reboots even in Recovery mode or after resetting, it will require a full Fastboot flashing, which will delete all data, but return the phone to the factory state.

Instructions:

1. Download the official firmware for your model from the Xiaomi website (select the Fastboot version).
2. Unpack the archive and install the Mi Flash Tool on your PC.
3. Turn off the phone, press Power + Volume down to log into Fastboot.
4. Connect your phone to your PC and in the Mi Flash Tool, select the firmware folder. Press Refresh, then Flash.
5. Wait for the end (10-15 minutes) and the phone will automatically restart.

⚠️ Note: Fastboot Flashback deletes all data, including photos and apps. pre-backup through Settings → System system → Backup or Mi Cloud. Also make sure the firmware model matches your phone - the wrong firmware can "brick" the device!

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If the phone is still restarted after flashing, the problem is almost certainly hardware (damaged motherboard, battery or memory).

5. Specific problems of Xiaomi models

Some Xiaomi models have unique bugs that cause reboots. Let's look at the most common ones.

If your model is not listed in the table, check the official Xiaomi forum – there are often discussed specific bugs for new devices.

6. When to contact the service center

If you’ve tried all the techniques, but the Xiaomi phone is still rebooting on its own, it’s time to turn to the professionals.

• 🔧 The phone can be rebooted even in Recovery or Fastboot mode.
• 💥 There was a smell of burning or blackening / melting on the motherboard is visible.
• 📉 Diagnosis shows critical memory error (for example, through a test in the AIDA64).
• 🔋 Battery swollen or does not hold charge (even after replacement).

The cost of repairs in Xiaomi service centers (in Russia for 2026):

• Battery replacement: 1,500–3,000 ₽ (model-wise).
• Diagnosis of the motherboard - 500-1000 ₽.
• Re-solding of memory / processor chips - from 5 000 ₽.
• Replacement of the display module (if the reboots are associated with damage to the plume) – 3000-8000 ₽.

⚠️ Note: If the phone is warranty, do not disassemble it yourself - this will void warranty obligations. Contact the authorized Xiaomi service center with a check and a box.

7.Prevention: How to Prevent Reboots in the Future

To minimize the risk of repeated failures, follow these guidelines:

• 🔋 Do not discharge your phone to 0% – optimal battery range is 20–80%.
• 🔥 Avoid overheating: Do not use your phone in direct sunlight or play heavy games while charging.
• 📱 Update your firmware regularly, but don’t install beta versions. MIUI — They often contain bugs.
• 🛡️ Use heat sink cases for gaming smartphones (e.g. Poco) F3 or black shark).
• 🚫 Do not install optimizers and “cleaners” – they often conflict with the MIUI.

It is also useful to perform calibration of the battery every 3-6 months:

1. Discharge the phone before automatically shutting down.
2. Charge to 100% without interruptions (use the original power supply).
3. Disconnect from charging and reset battery statistics through Settings → Battery → Menu (three dots) → Resetting battery statistics.

FAQ: Frequent questions about Xiaomi reboots