The situation where Xiaomi or Redmi suddenly starts to reboot endlessly, throwing the user out of the workflow is one of the most stressful for the owner.This phenomenon, often referred to as a "bootloop" (cyclical reboot), can occur suddenly after installing an app, updating the system, or even for no apparent reason.The device can hang on the Mi or Redmi logo, blink the screen or just go out and turn on again every few seconds.
The reasons for this behavior range from simple memory overflows to critical memory failures or system files. Most of the time, the problem is solved by software methods that do not require a call to the service center. However, it is important to act consistently, starting with the simplest steps and gradually moving to the most difficult ones, so as not to aggravate the situation with data loss.
In this guide, we will look at all possible scenarios, from forced reboot to flashing through Fastboot. You will learn to distinguish between software failure and hardware, and also understand when self-repair is already dangerous for the device.
Primary diagnosis and mild reset
Before you panic and carry the phone to the wizard, you need to eliminate the temporary software "glitch." Often the Android operating system or the MIUI shell (HyperOS) just hangs in the error cycle. The first step should always be a forced reboot. To do this, press the power button and hold it for 10-15 seconds. If the device reacts with a vibration or logo, release the button.
Sometimes the problem is sticking the on button or damaging the protective case that is constantly pressing on the key. Remove the case and carefully examine the side of the smartphone. If the button is "walking" or pressed without a characteristic click, the problem can be mechanical, in which case the constant attempts to turn on will initiate a new cycle of reboot.
If your phone is running normally, back up immediately. Even if your device is stable, the risk of re-failure is high. Use Google's cloud services or the built-in Mi Cloud tool. Also check for free storage space: if you're using more than 95% of the memory, the system may not work properly.
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If the power button is damaged, try using the “Double tap to turn on the screen” feature in the settings to temporarily bypass the mechanical fault.
Safe mode and removal of conflict applications
A common reason Redmi Note or Poco is going into reboots is because of newly installed apps, especially those that request deep access rights or modify system settings, and to test this theory, you have to run your smartphone in Safe Mode, and only system applications are downloaded in this mode.
To enter safe mode on most Xiaomi models, you need to wait for the logo to appear after turning on, then press the volume button and hold until full load. If in this mode the phone is stable and does not restart, then third-party software is to blame. You will have to find and remove problem software by eliminating the method.
- 📱 Think about the apps you installed or updated the day the problem occurred.
- 🗑️ Remove Memory Cleaners, Antiviruses, and Third-Party Launchers First.
- ⚙️ Check the applications with administrator rights in the Settings menu → Passwords and security → Confidentiality.
- 🔄 Turn off auto-update apps in Google Play while you diagnose.
Special attention should be paid to applications that were not downloaded from the official Play Market store. APK-Files often contain code errors that are incompatible with your version. MIUI. If the problem has disappeared after removing the suspicious software, simply avoid using it in the future or look for an alternative.
☑️ Safe mode operations
Diagnostics of hardware and battery
If the Xiaomi smartphone reboots even when it is turned off (unwittingly switches on), or the reboot cycle is too fast (every 5-10 seconds), this may indicate a hardware failure.
The degradation of the lithium polymer battery causes the voltage to drop under load, and when the processor requires more power to start the system, the battery can't give it up, the voltage drops below critical, and the phone turns off urgently, then the cycle repeats, and you can check the battery status through the engineering menu.
##6484##Enter this code in the Phone app (if you can get into the dial menu). CIT will open the engineering menu. Select Battery or Power to see the current voltage and battery health. If Bad status or voltage jumps, a battery replacement is inevitable.
| Symptoms. | Probable cause | Decision |
|---|---|---|
| Restart only when the cameras are running | Failure of the camera module or plume | Disable the camera in the Application Manager or replace |
| Turn off when charged less than 20% | Battery wear (calibration) | Replacement of AKB |
| Reboot cycle after fall | Display plume or battery waste | Disassembly and reconnection of plumes |
| Heating of the lower part of the shell | Short circuit in the food chain | Urgent repairs at the SCC |
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If the phone is warmed at the bottom (where the processor is) even when it is switched off when connected to charging, it is a sign of a short circuit that requires professional soldering.
Reset to factory settings (Hard Reset)
If software and secure mode fail, a radical but effective tool is a complete data reset, which will return Redmi to the “out of the box” state.
Resets are available via the Recovery menu. Turn off your phone (if it's on) and press the power button and volume button at the same time. Hold until the Mi logo appears. In the Recovery menu, volume buttons (up/down) are used to control the device and power buttons are used to select it.
⚠️ Note: On Xiaomi’s newer models with Anti-Rollback protection and Mi Account binding, after a reset, the phone will require you to enter a password from a Google or Mi Account that was synced earlier.If you don’t remember the password, access to the device will be permanently blocked.
From the Recovery menu, select the language (English), then go to Wipe Data → Wipe All Data. Confirm the action. The process can take several minutes. Once complete, select Reboot → Reboot to System. The first run will be long, up to 5-10 minutes.
What to do if the Recovery menu does not open?
Fastboot mode and flashing the device
When even the reset doesn't work, and Xiaomi's smartphone keeps rebooting indefinitely, it requires a complete flashing. It uses Fastboot mode. It's a low-level mode that allows you to interact with your phone's memory directly, and you can log in by holding down the power button and the volume button when the phone is off.
For firmware, you will need a computer with Windows OS, USB-cable (preferably original) and Mi Flash Tool (ROM) You should download from the official website miui.com, strictly following the model of your device. CN (Chinese), as mixing them can lead to blocking the bootloader.
- 📥 Download the firmware archive and unpack it into the root of the C disk (the path should not contain Cyrillic).
- 💻 Install the drivers. ADB and Fastboot on the computer.
- 🔌 Connect your phone in Fastboot mode (screen with a hare fixing an android) to your PC.
- ⚡ In Mi Flash Tool, click Refresh, select firmware file and Clear all mode».
The firmware process will take 200 to 600 seconds. It's critical that you don't turn off the cable or interrupt the process. If the progress lane is getting stuck or there's a red error, try another one. USB-A successful completion will be marked by a green stripe and automatic reboot of the phone.
⚠️ Note: Unlocked Bootloader flashing may not be possible without official unlocking through Xiaomi servers, which requires a wait of 7 to 30 days. Standard firmware via Mi Flash often requires unlocking. BL.
Problems with renewal and memory
Sometimes the reboot cycle starts immediately after you try to upgrade the system "over the air" (OTA).This can be due to damage to the boot sector or lack of space to unpack updated files. If the phone is stuck on the update screen, try clearing the update cache.
This also uses the Recovery menu. Go to it (Power + Vol Up), select Wipe Data → Wipe Cache (if such an item is available in your version of Recovery, in new versions of MIUI it is often combined with a full reset).
Another hidden cause of failure is embedded memory degradation (eMMC or UFS). If the memory cells are “dumped”, the system cannot write temporary files necessary for operation and goes into reboot, an indirect sign of this is the very slow operation of the interface before the failures begin, or the appearance of artifacts on the screen.
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Use the AIDA64 app on Android to check the processor model and memory type. If the device is older (over 4-5 years old), memory wear is a very likely cause of instability.