Why Xiaomi is constantly rebooting on its own: a full analysis of the causes and solutions

Does your Xiaomi suddenly turn off and turn on for no apparent reason? screen goes out, logo appears MI, And after a few seconds, the phone is ready to go again, before the next reboot? This problem is familiar to many smartphone owners of the brand, and it can occur as on new models (Redmi Note 12, POCO X5), In the same way, on devices 2018-2020 (Mi 9, Redmi 7). In 80% of cases, it is not the hardware that is to blame, but software failures, but you can not ignore the symptom: constant reboots accelerate battery wear and can lead to data loss.

In this article, we will analyze all possible causes of spontaneous reboots - from bugs MIUI We will also provide step-by-step instructions for diagnosing and fixing the problem, and we will focus on models with Snapdragon processors. 6xx/7xx And MediaTek Helio, who are the most likely to suffer from "perpetual reboots," and if your phone only reboots when you're connected to a charger or while you're making calls, that's a key symptom that narrows the range of possible causes to a problem. 2–3 variant.

1. Software glitches: bugs MIUI Application conflicts

The most common cause of spontaneous reboots is firmware problems. Xiaomi regularly releases updates to the software. MIUI, But some versions contain critical errors, especially in the first releases. MIUI 14.0.3 for Redmi Note 11 was a bug that caused the phone to reboot when activated mobile data after sleep. POCO F3 on MIUI 13.0.4 Reboots occurred when Wi-Fi Calling was enabled.

How to check if the firmware is to blame:

• 📱 Look at the version. MIUI: Go to Settings. → The phone. → Version. MIUI. If it’s a fresh update (released less than 2 weeks ago), there’s a high probability of a bug.
• 🔄 Reverse to the old version: if the reboot started after the update, try to go back to the previous firmware via Fastboot or Recovery.
• 🛠️ Install custom software: firmware like Pixel Experience or LineageOS often solves the problem, but require unlocking the bootloader.

Another culprit is conflicting applications, and most often, reboots are:

• 🎮 Games with aggressive optimization (Genshin Impact, Call of Duty Mobile).
• 🔒 Antivirus and Optimizers (Clean Master, 360 Security).
• 📱 Launchers from third-party developers (Nova Launcher, Microsoft Launcher).

⚠️ Warning: If the phone only restarts when a particular application (like TikTok or Google Maps) is running, the problem is that app. Delete the app and check the device without it. In 30% of cases, a simple reinstallation helps.

2.CPU overheating: why Xiaomi is switching off from high temperature

Xiaomi (especially Snapdragon processor models) 8xx MediaTek Dimensity is prone to overheating when it reaches a critical temperature (usually 60-65).°C. The protection is activated, and the phone is forced to restart. This is normal for intense workloads (games, video shooting). 4K), But if the reboots occur in standby mode - this is a sign of malfunction.

How to diagnose overheating:

1. Install the app AIDA64 or CPU Monitor and check the processor temperature in simple and under load.
2. If the temperature in the idle exceeds 45°C, and under load reaches 70°C+, cooling-off.
3. Try to run a stability test in the 3DMark If the phone reboots during the test, it's overheating.

Causes of overheating and ways of elimination:

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If the phone overheats, never put it in the fridge!A sharp temperature drop can damage the screen and battery. Instead, remove the case and let the device cool at room temperature.

3. Battery problems: bloating, wear, short circuit

The battery is the second most common culprit in spontaneous reboots. Xiaomi’s average battery life is 2-3 years (or 500-800 charge cycles), after which the capacity drops, the voltage becomes unstable, and the phone turns off at the slightest load. Models with 4000-5000 mAh batteries are particularly vulnerable (POCO X3, Redmi Note 10 Pro).

Signs of a faulty battery:

• 🔋 The phone shows 30-40% charge, but suddenly turns off.
• 🔌 Reboots only occur when connected to charging.
• 📏 The phone is swelling (check if the device is flat on the table).
• ⚡ The battery is discharged in 2-3 hours with minimal load.

How to check the status of the battery:

1. Type ##4636##, select Battery Information, and check Health Level, if it's below 80%, change the battery.
2. Use the AccuBattery app to analyze the capacity, and if the actual capacity is less than 70% of the declared capacity, the battery is worn out.
3. Check the voltage: normally it should be 3.7-4.2 V. If jumps from 3.0 V to 4.4 V - the battery is faulty.

Failures in the communication module: SIM-map, Wi-Fi, Bluetooth

If the phone is rebooted when calling, send SMS Or you could connect to Wi-Fi, and the problem is the communication module:

• 📶 Modem malfunction (often found in Redmi) 9A and POCO M3 fall-out).
• 📱 Conflict with SIM-Cards (especially if you use two cards at the same time).
• 🔗 Problems with antenna track (bad signal causes modem to overload).

Diagnostics and solutions:

If the problem is only one of SIM-with a map, try it:

1. Insert the card into another slot (if the phone supports Dual) SIM).
2. Wipe your contacts. SIM-stained cards (oxidation can cause failures).
3. Disable VoLTE and Wi-Fi Calling in Settings SIM-map.

Try calling through the messenger.|Turn off VoLTE in the settings|Reset the network settings|Check it out. SIM-card-->

5. Hardware malfunctions: board, plumes, power button

If the software methods didn't work, the problem is the hardware, and the most common ones are:

• 🔧 Power button: If it lands or contacts oxidized, the phone may perceive random taps as a command to reboot.
• 📱 Battery plume: a worn or torn plume causes short circuits.
• 🔌 Power Controller: If the phone only reboots when charging, this chip is to blame.
• 🔄 South Bridge: responsible for the communication between the components of the board, and when overheated or detached, "eternal reboots" begin».

How to diagnose hardware problems:

1. Check the power button: press it several times. If it dangles or clicks indistinctly, you need to replace it.
2. Look at the charging connector, bend the cable, see if there's sparking or heating, and if so, the problem is the connector.
3. Shake the phone: if something rattles inside, it could be a disconnected plume or screw.
4. Check for heated areas: If the back cover is hot in one place (like near the camera) it’s a sign of a short circuit on the board.

⚠️ Note: If the phone reboots when it vibrates (such as during a call or notification), this may indicate that memory chips are detached (especially in the Redmi Note 8 Pro and the Redmi Note 8 Pro models). POCO F1). In this case, you need to sell in the service center, otherwise the problem will worsen.

6. Conflicts after updating or resetting settings

Updates MIUI and factory resets often lead to conflicts, especially if:

• 🔄 You've been updated "over the air» (OTA) with missing versions (for example, with MIUI 12 straight on MIUI 14).
• 📱 You did a reset, but didn’t format your internal memory (data and cache were left clogged with garbage).
• 🔧 You have used unofficial firmware or patches (e.g. Magisk for root rights).

How to fix it:

1. Make a complete reset with formatting: Settings → Additionally. → Recovery and discharge → Delete all data (enable "Erase internal memory")
2. Fastboot: Download the official firmware from the Xiaomi Firmware website, connect the phone to your PC in Fastboot mode and execute the command: fastboot flash all [name file firmware].zip
3. Reverse to the stable version MIUI: If the problem started after the update, look for the old firmware (for example, the new one, MIUI 13.0.6 instead of 14.0.2) and install it via Recovery.

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If the phone only reboots after resetting, the damaged partition is most likely to be to blame. /data. In this case, only a complete flashing through Fastboot with formatting all partitions will help.

7 Viruses and Malware: Hidden Mining Bots and Spies

Malware can load the processor to 100%, causing overheating and forced rebukes, and phones with unlocked bootloaders or installed are particularly vulnerable. APK For example, in 2023, the Xamal virus was discovered, which masqueraded as a system update and caused Xiaomi to restart every 10-15 minutes.

How to detect the virus:

• 📊 Check the processor activity in AIDA64 Or DevCheck. CPU 80-100% loaded for no apparent reason – it is suspicious.
• 🔍 Install Malwarebytes or Kaspersky Mobile and scan the system.
• 📱 See the list of installed apps: viruses are often masquerading as System Updates, Google Play Services, or MIUI Optimization.

How to remove malware:

1. Launch your phone in Safe Mode (hold the power button) → long tap on "Switch off» → «Safe Mode. If the reboots have stopped, the third-party app is to blame.
2. Remove suspicious programs, especially those that have requested administrator rights.
3. If the virus is sewn into system files, only a complete reset or flashing will help.

8.When to contact the service: signs of serious breakdowns

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

• 🔥 Phone heats up to 50°C+ in simple (even after discharge).
• ⚡ Reboots are accompanied by sparking from the charging connector.
• 📵 The screen flickers or goes out before the reboot (a sign of problems with the display or plume).
• 🔊 The phone beeps or vibrates before switching off (may indicate a short circuit).

Cost of repair depending on the problem:

⚠️ Warning: If the phone is warranty, do not open it yourself - this will void the Xiaomi warranty. Contact the official service center with a check and a box. In 2026, Xiaomi Russia repairs phones with defective batteries for free (if the purchase was less than 2 years ago).

FAQ: Frequent questions about Xiaomi reboots