Why Xiaomi is constantly rebooting and how to fix it: the full guide

Introduction: Why Xiaomi’s smartphone is going into an “endless reboot”

If your Xiaomi (whether it’s Redmi Note 10 Pro, POCO X3 or the flagship Mi 11 Ultra) suddenly starts rebooting for no apparent reason, it’s not just an annoying little thing, but a symptom of a serious malfunction. Cyclical reboot (or bootloop) can occur due to software failures or physical damage to components. In 80% of cases, the problem can be solved on its own, but it’s important to act consistently, eliminating possible causes one after another.

The first thing to understand is that chaotic reboots and a loopy reboot on the logo are two different scenarios: in the first case, the phone can last for several minutes (or even hours) before another crash, in the second case, it does not load beyond the screen labeled Mi or POCO. The type of problem depends on the algorithm of actions. Next we will examine both options, and also consider the rare cases when it is not the software but the hardware.

Warning: If the phone overheats before rebooting (the body gets hot), turn it off immediately and don't turn it on until you know why. This can be a sign of a battery short circuit - one of the most dangerous malfunctions.

1. Programmatic reasons: from updates to viruses

60% of the time, the problem is most often caused by:

• 📱 Failed update MIUI (Especially if you interrupt the process or install firmware from another model).
• 🔄 Reset to factory settings via the recovery menu, if the binding to the Mi Account was not disabled before.
• 🦠 Malware infections (for example, after installation) APK unverified).
• 🎮 Use of custom firmware or modified cores (e.g. Magisk for root rights).

The easiest way to diagnose a software failure is to try booting your phone into Safe Mode.

1. Turn off the device (if it responds to the power button).
2. Press the Power button and hold until the Mi logo appears.
3. As soon as the logo appears, release Power and immediately press Volume down.
4. Keep Volume down until the phone boots with the words “Safe Mode”** at the bottom of the screen.

If the reboots stopped in safe mode, one of the installed applications is to blame, and if the problem persists, it is the system software or hardware.

After updating|After the fall/hit|For no apparent reason.|When charging is connected|Another option-->

2. Hardware causes: battery, contacts, overheating

If the software methods didn't work, check the hardware.

Critical information: If the phone reboots when it is connected to charging, immediately stop using this cable/adapter. This can be a sign of a short circuit in the power supply chain, which is fraught with fire.

To check the battery without disassembling the phone:

1. Connect your phone to charge and watch the percentage of charge in real time (for example, through the battery widget).
2. If the charge jumps (for example, from 50% to 20% per second) – the battery needs to be replaced.
3. If the phone turns off at 10-15% charge, although it used to work up to 0% - this is also a sign of wear and tear.

3. Reset to factory settings: when and how to do

If the phone is loading occasionally but is not stable, the first step is a hard reset, which will delete all the data, but return the system to its original state. Importantly, if the phone was enabled by the binding to the Mi Account, after the reset, you will need to enter the username and password from it!

Instructions for resetting through the recovery menu (Recovery Mode):

Make a backup copy of important data|Remember the username/password from Mi Account|Charge your phone to at least 50%|Prepare. SIM-card (if necessary for activation)-->

1. Turn off the phone (if it doesn’t turn off in the usual way, press Power + Volume up for 10 seconds).
2. Press the Power + Volume combination up and hold until the Recovery menu appears.
3. Use volume buttons for navigation and power to select Wipe Data (or Factory Reset).
4. Confirm the action and wait until the process is completed (usually 1-3 minutes).
5. Select Reboot System Now.

⚠️ Warning: If after a reset, the phone requires data input from Mi Account, and you do not remember them - do not try to guess! After 5 unsuccessful attempts, the device will lock for 24 hours.

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If the phone doesn’t respond to the Recovery Login button combination, try connecting it to a PC with the Mi Flash Tool installed and loading it into Fastboot mode (clamp Power + Volume Down).

4.Fastboot flashing: when resetting doesn't help

If the smartphone is fixated on the Mi logo and doesn’t load even in Safe Mode, it will require a complete flashing through Fastboot mode.This method is suitable for most Xiaomi, Redmi and POCO models, but requires a PC and special software.

What you need:

• 💻 Windows computer (recommended) 7/10/11).
• 🔌 Original. USB-cable (better from the set).
• 📁 Firmware for your model (download only from the official Xiaomi website).
• 🛠 Mi Flash Tool (the latest version can be found on the forum) XDA Developers).

Step-by-step:

1. Download and install the Mi Flash Tool.
2. Unpack the firmware archive in a folder without Cyrillic characters (e.g., C:\Xiaomi\proshivka).
3. Turn off your phone and press Power + Volume down to enter the Fastboot (a bunny with the word Fastboot should appear).
4. Connect your phone to your PC. The Android Bootloader Interface should appear in Device Manager.
5. Launch the Mi Flash Tool, press Select and specify the path to the firmware folder.
6. Press Refresh – the program must detect the phone.
7. Select firmware mode: Clean all - complete cleaning (recommended). Clean all and lock - cleaning + lock the bootloader (if unlocked).

Flash

⚠️ Note: If the program produces an anti-rollback error during firmware, it means that you are trying to install an older version. MIUI, In this case, you need to download a newer firmware or use the XiaomiTool tool. V2 circumvention.

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Fastboot removes all data, including files in internal memory. If your phone had important data, try extracting it first through EDL mode (requires an authorized Xiaomi account).

5. Battery problems: diagnosis and replacement

If the phone reboots at 30-40% charge or shuts down in the cold, the battery is to blame. The average battery life in Xiaomi smartphones is 2-3 years (or 500-800 charge cycles), then the capacity drops by 20-30%, and the power controller begins to crash.

How to check the status of the battery without disassembly:

1. Install the AccuBattery app (available on Google Play).
2. Charge your phone to 100% and use it until it is automatically turned off.
3. In the Health app menu, check the Estimated Capacity option, which is less than 80% of the declared capacity, and you should change the battery.

You can replace the battery yourself (if you have experience disassembling equipment) or in the service center.

⚠️ Note: When replacing yourself, only use original batteries or certified analogues (e.g., Baseus or Remax). Cheap fakes can swell or ignite!

6.Overheating and cooling problems

If the phone reboots during games, video shooting or charging, the cause may be overheating. Normal operating temperature of the Snapdragon or Mediatek processor - up to 60 ° C. If it exceeds 70-80 ° C, an emergency shutdown is triggered.

How to check the temperature:

1. Install the AIDA64 or CPU Monitor app.
2. Run a performance test (e.g. 3DMark or Geekbench).
3. Keep track of the temperature chart in real time.

Causes of overheating and ways of elimination:

• 🧊 Radiator/heat tube contamination: if the phone fell or was operated in a dusty room, the cooling may be disrupted.Solution - disassembly and cleaning.
• 🔧 Dried thermopaste: on Xiaomi processors, the thermopaste serves 2-3 You can do this in the service center for a year, and then you need to update it.
• 🔋 Faulty battery: Bloated battery presses on motherboard, worsening heat sink.
• 🎮 CPU Trottling: If the phone is constantly running at its highest frequency (for example, due to background processes), it will overheat. AIDA64 section CPU Throttling.

Temporary solution for reducing temperature:

1. Turn off the background activity of applications in the settings (Settings → Applications → Auto Run).
2. Reduce screen resolution and refresh rate (Settings → Display).
3. Use Battery Performance Mode instead of Performance.
4. Remove the case (especially silicone) during heavy loading.

7. When to contact the service center

Not all problems can be solved by yourself. contact the official Xiaomi service (or a trusted private service) if:

• 💥 The phone fell into the water or was subjected to severe vibration (risk of damage to the board).
• ⚡ Reboots are accompanied by sparking or the smell of burning (short circuit).
• 🔧 After disassembly, swollen capacitors or oxidized contacts were found.
• 📱 The screen flashes or artifacts appear before rebooting (a graphics chip problem).
• 🔄 All software methods have been tried, but the problem remains.

The cost of repair in the official service Xiaomi (example prices for Moscow):

⚠️ Warning: If the phone is warranty, don't disassemble it yourself! Opening the case will void warranty obligations.

FAQ: Frequent questions about Xiaomi reboots