Why Xiaomi Phone Is Constantly Rebooting: All the Reasons and Solutions

Xiaomi smartphone owners often face a problem when the device starts spontaneously restarting — whether during games, watching videos or even in standby mode — a malfunction that is not only annoying, but can signal serious hardware or software problems. Unlike scheduled reboots after upgrades, cyclical reboots often indicate system failures.

The reasons for this behavior range from trivial overheating to critical errors in MIUI firmware. For example, the Redmi Note 10 Pro and POCO X3 Pro models are known for problems with the power controller, and the Xiaomi 12T is known for kernel conflicts after updates. It is important to understand that 80% of spontaneous reboots are associated with software failures that can be fixed without visiting the service center. The remaining 20% are hardware malfunctions that require diagnosis.

In this article, we’ll look at all possible causes, from trivial to rare, and give you step-by-step instructions for diagnosing and fixing the problem. If your Xiaomi reboots every 5 minutes or hangs on the Mi logo, here’s the solution.

1. Processor overheating: the main cause of accidental reboots

The most common cause of spontaneous reboots is thermal trottling (automatic shutdown when overheated). Xiaomi smartphones on Snapdragon chips (such as the Redmi Note 11 Pro+ with the Snapdragon 695) are particularly susceptible to this because of aggressive core overclocking policies. At temperatures above 65°C, the system is forced to reset to avoid damage to components.

How to check:

• 🔥 Install the app AIDA64 or CPU Monitor and monitor the temperature of the processor in real time.°C in plain, up to 60.°C under load.
• 🎮 Run a resource-intensive app (like Genshin Impact or Call of Duty Mobile) and watch the behavior of the phone. If it reboots after 10-15 minutes of play, it's overheating.
• ☀️ Check if the phone is in direct sunlight or near heat sources (e.g., on a charger near a laptop).

Decisions:

• 🛠️ Remove the case (especially silicone or thick) – it can block the heat sink.
• ⚙️ Enable Battery Performance Mode → Performance mode → "Balanced" (not "High Performance").
• 🧊 Use a cooling stand or fan (such as Black Shark FunCooler Pro).
• 🔄 If overheating occurs even in simple – replace the thermopaste (relevant for models older than 2 years).

⚠️ Note: If the processor temperature exceeds 70°C in plain is a critical signal. Stop using the device immediately and contact the service if the power controller or battery may fail.

2. MIUI firmware failures: update errors and kernel conflicts

MIUI firmware is known for its surprises after updates, especially the MIUI 13.0.4–13.0.8 versions for Xiaomi 11T/12 series, where cyclic reboots were massively recorded due to errors in the Linux kernel, and failures often occur when:

• 📱 Incomplete installation OTA-Updates (for example, if the phone is turned off during the process).
• 🔄 Conflict between the version MIUI and the Android version, for example, MIUI 14 based on Android 12 instead of Android 13).
• 🛠️ Rooting or installing custom firmware (e.g. Pixel Experience on the POCO F3).

How to diagnose:

1. Check the firmware version in Settings → About Phone → MIUI version.
2. Search for bug information for your model on the Mi Community or 4PDA forums.
3. If the phone reboots on the Mi logo, try going to Fastboot (click Volume Down + Power when turned on).

Decisions:

Check the MIUI version in the settings

Look for complaints about your 4PDA model

Try to reset the cache through Recovery

Reverse to the previous version MIUI (if the update has been recently installed)-->

3. Battery problems: bloating and wear

The battery is the second most common culprit in spontaneous reboots.

• 🔋 The phone turns off at 20-30% charge, although the indicator shows a normal level.
• 🔄 Reboots occur when connecting / disabling charging.
• 📉 B Settings → Battery → The state of the battery is displayed wear > 500 cycles or status "Replace battery".
• 💥 The phone is swelling (check if the device is flat on the table).

How to check:

1. Install the AccuBattery and check the actual battery capacity, and if it's less than 80 percent of the declared battery capacity, the battery is worn out.
2. Connect your phone to charge and move the cable, and if the device reboots, the problem is the USB-C connector or the power controller.
3. Light the flashlight on the battery (if the case is removable), and the swelling is visible in the bubble on the surface.

Decisions:

• 🔧 Replace the battery at the service center (cost for Redmi Note – from 1500) ₽, for flagships Xiaomi 13 – from 3500 ₽).
• ⚡ Use only original chargers (Xiaomi with Quick Charge support) 3.0/4+).
• 🔌 Clear the connector. USB-C from dust and oxidation (use a wooden toothpick soaked in alcohol).

⚠️ Warning: If the battery is swelling, stop using the phone immediately. The risk of fire or explosion during further use is extremely high.

4. Application conflicts and viruses

Some applications (especially pirated or from questionable sources) can cause kernel panic, a critical kernel error that leads to a reboot.

• 🎮 Repacia games (GTA San Andreas, PUBG Mobile with mods).
• 📱 Acceleration of the phone (Clean Master, DU Speed Booster).
• 🔓 Hacked versions of paid software (e.g. Luck Patcher).
• 🦠 Viruses masquerading as system utilities (e.g. com.android.system.update).

How to identify the problem application:

1. Run your phone in Safe Mode (press Power → hold off “Switch off” → press “Safe Mode”). If the reboots stop, it’s third-party software that’s to blame.
2. Check the error logs through MatLog (developer rights required). Look for lines with "crash," "reboot" or "watchdog."
3. Remove recently installed apps (especially from sources outside of Google Play).

Decisions:

• 🛡️ Scan your phone with an antivirus (Malwarebytes or Kaspersky).
• 🗑️ Clear the app cache in Settings → Annexes → [Select the application] → Warehouse → Clear the cache.
• 🔄 Reset your phone to factory settings (pre-save data!).

💡

If the phone reboots when you open a particular app (like TikTok or Instagram), try turning off hardware acceleration in its settings or install an older version of the APK.

5. Hardware malfunctions: motherboard and memory

If the software methods didn't work, the problem could be the hardware.

• 🔌 Faulty power controller (often found in Redmi Note 9 Pro and POCO X3 NFC).
• 💾 Damaged flash memory (read/write errors cause system to crash).
• 📡 Module problems Wi-Fi/Bluetooth (For example, in Xiaomi Mi 10 fall).
• 🔧 Heap or oxidation of contacts on the motherboard (especially after moisture enters).

Diagnosis:

• 🔍 Check your phone for physical damage: cracks on the board, corrosion marks, bloated capacitors.
• 📊 Run a memory test using ##6484## (on some models) or an app MemTest86.
• 🔌 Connect the phone to PC And check the stability of the connection. If the device turns off/connects itself, the problem is that the device is not connected. USB-port-controller.

Decisions:

⚠️ Warning: If the phone reboots when it vibrates (e.g., when it rings) it is a sign of a microcrack on the board, often occurs after falls. Self-repair is not possible - a soldering station and an experienced craftsman are required.

6. Resetting and flashing: extreme measures

If all previous methods have failed, radical methods remain:

1. Hard Reset: Turn off your phone. Close Volume Up + Power before the Mi logo appears. From the Recovery menu, select Wipe Data → Factory Reset.

⚠️ All data will be deleted! Pre-reverse through Settings → Additionally. → Backup.

Fastboot flashing:

fastboot flash all [name firmware].tgz


fastboot reboot

Download the official firmware for your model from the MIUI Download website and follow the instructions.

Reverse to the old version of MIUI:

If the crashes started after the update, return to the previous stable version via the Mi Flash Tool (select the option). clean_all).

💡

Before flashing, be sure to unlock the bootloader through the Mi Unlock Tool (requires a binding Mi Account and wait 72-168 hours).

7.When to contact the service: signs of critical malfunctions

Some problems cannot be solved by yourself. Contact the service center if:

• 🔥 Phone overheats to 80°C+ down-to-earth.
• 💥 Reboots are accompanied by cotton or the smell of burning.
• 🔄 The device does not turn on after the reboot (black screen, no vibration).
• 📵 Failed basic functions: camera, speaker, sensor.
• 🔧 On the board visible burnt elements or traces of corrosion.

The cost of repairs in official Xiaomi services (for 2026):

Before the service visit:

• 📋 Write it down. IMEI phone (on the box or via *#06#).
• 🔐 Make sure you have access to your Mi Account (may be required to unlock after repairs).
• 📦 Bring a box and a check (if the phone is guaranteed).

FAQ: Frequent questions about Xiaomi reboots