Owners of Xiaomi, Redmi and Poco smartphones often face the unpleasant situation of suddenly turning off and immediately turning on again, which can occur at any time during a conversation, standby or when launching a heavy application, this behavior of the system is not only annoying, but can indicate serious malfunctions that require immediate attention.
The causes range from a simple memory overflow to critical hardware errors, and understanding the nature of the failure is the first step to restoring stability to the gadget, and in some cases, a simple reboot is enough, in others, you will need to interfere with system files or replace components.
In this article, we will discuss in detail the software and hardware factors that provoke a cyclic restart. You will learn how to diagnose yourself and what actions will help return the phone to normal life without contacting the service center.
Software failures and operating system errors
The most common cause of spontaneous reboots is software conflicts. A MIUI or HyperOS operating system can encounter a data processing error, causing the Android kernel to initiate an emergency restart to protect hardware, often after a failed firmware update.
This is made worse when a device has multiple applications installed from untested sources, and conflicting processes can overload the task manager, causing freezes and subsequent reboots, especially on models with little RAM.
To fix software errors, try clearing the cache of system applications or resetting to factory settings.Be sure to back up important data before doing so, as a full reset will delete all user information.
Risks of resetting settings
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Software failures are often solved by cleaning the cache or reinstalling system updates, but require a prior data backup.
Problems with battery and power supply
If Xiaomi’s smartphone turns off at 20-30% charge or reboots when the camera starts, the problem may lie in battery degradation.Lithium-ion batteries lose capacity over time and cannot produce the necessary current under load, causing a voltage drop and emergency shutdown.
It is also worth checking the status of the charging cable and the power supply. Unstable voltage from an external source can be perceived by the system as a critical power error, initiating a reboot. Using cheap analogues of charging often damages the charge controller.
Notice the physical condition of the battery, because the battery bloating is not only causing the instability, but it is also a direct threat to the safety of the device, and in such cases, the device must be stopped immediately.
- 🔋 Check battery wear through the engineering menu or special diagnostic applications.
- ⚡ Try replacing the cable and power supply with original or certified analogues.
- 🌡️ Watch the temperature of the body: overheating accelerates the degradation of chemical elements.
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Use the battery optimization feature in the Safety menu to identify applications that cause excessive discharge and heating.
The effect of overflowing memory on job stability
A full internal drive is one of the common reasons why Xiaomi’s phone reboots itself: When free space tends to zero, the system lacks the resources to create temporary files and maintain logs, which leads to a crash of system processes.
Filling in the partition where system data is stored is particularly critical. Even if you have several gigabytes of free space on the gallery, the lack of space in the system partition can block RAM, causing cyclical restarts.
It is recommended to regularly clean the device of unnecessary files, messenger cache and duplicate photos. To automate the process, you can use the built-in Cleanup application, which safely deletes temporary files.
Application conflicts and malicious code
Installation of applications from third-party sources (APK-Viruses and miners can load the processor to the limit, causing overheating and protective reboot of the device.
Legal programs can also be in conflict, especially if they are not optimized for your version of Android, and often problems begin after an application update that changes the system libraries.
To diagnose, run your phone in Safe Mode, which is only the system applications that are downloaded, and if the reboots have stopped in this mode, then the problem is definitely with third-party software.
⚠️ Warning: If the phone restarts even in Safe Mode, the likelihood of hardware malfunction or damage to Android system files increases significantly.
Hardware malfunctions and overheating of components
When software methods don't work, you have to think about the physical condition of the device, and plume slipping, microcracks on the board, or contact oxidation after moisture gets in, can cause short circuits and reboots.
Overheating is another important factor, and if the heat paste is dry or the thermoprofile is gone, the processor goes into protection at the slightest load, which often happens in games or when shooting high-resolution video.
It's best to do a hardware diagnostic at a service center, but you can visually inspect the charging connector and the SIM card yourself, and the presence of oxides or dust can interfere with normal contact.
Diagnosis and table of possible causes
To organize the search for a malfunction, use the table below, which will help you compare symptoms with the most likely causes and choose the right vector of action.
| Symptoms. | Probable cause | Method of decision |
|---|---|---|
| Reboot when the camera starts | Memory shortage or driver failure | Cache cleanup, settings reset |
| Turn off in the cold | Battery wear and tear | Battery replacement |
| Cyclical restart after update | Firmware error | Fastboot flashing through Fastboot |
| Accidental shutdowns in games | Processor overheating | Cleaning from dust, replacing heat paste |
☑️ Diagnostics before going to the service
Recovery and flashing methods
If nothing works, the radical method is flashing, and using the Mi Flash Tool, you can install the latest version of the software completely, without any software errors, but it requires care.
It is important to download the firmware for your model, installing an inappropriate file can turn your smartphone into a brick. Carefully check the model code in the settings or under the battery.
The flashing process takes 5 to 15 minutes, and you can't turn off the USB cable or interrupt the connection to the computer, and the power stability of the PC is also important.
⚠️ Warning: Unlock Bootloader flashing may result in some banking applications being blocked due to security breaches.