How to make your phone not turn off on Xiaomi: the complete guide

The situation when a Xiaomi or Redmi smartphone suddenly goes out on the lock screen or during a conversation is familiar to many owners. Often this is not due to a breakdown, but due to an aggressive policy of energy saving the MIUI or HyperOS system. The operating shell tries to maximize the time of operation, forcibly closing the background processes, which can be perceived by the user as spontaneously turning off the device.

It's important to distinguish between a software failure when the display goes out and a total power outage. In the first case, you just need to adjust the screen timer and lock parameters. In the second case, the problem lies deeper: in memory errors, overheating of the processor or battery degradation. Proper diagnosis begins with a symptom analysis: is it happening in a particular application or chaotic at any time of the day?

Solving the problem requires a comprehensive approach, including checking system settings, updating software and possibly calibrating the battery. Ignoring such signals can lead to complete failure of the gadget or loss of important data. Below we will discuss in detail all methods of stabilizing your device.

Optimizing screen settings and locking

The most common reason that the phone seems to be off is because the display is quenched. MIUI has its own algorithms for detecting where the device is in your pocket or on your desk. If the proximity sensor is contaminated or malfunctioning, the screen can go out instantly after unlocking.

The first thing you need to do is check your sleep timer settings. A standard 15 or 30 seconds may be too short for comfortable use. Increase this to 1-2 minutes to avoid constant blockages while reading or watching videos.

You should also pay attention to the Pocket Mode feature, which, if activated, will lock the phone whenever the top end of the case is blocked, which is useful for protection against accidental pressing, but can interfere if you use a magnetic cover or thick protective glass.

• 📱 Go to Settings. → Lock screen and increase the timeout display.
• 🔒 Turn off “Mode in your pocket” in the Lock and Protection menu if it causes false positives.
• 💡 Check the approximation sensor through the engineering menu by dialing code ##6484##.
• 🛡️ Make sure the protective glass does not cover the touch areas at the top of the screen.

⚠️ Attention: The use of poor-quality black-framed protective glasses often results in the light and proximity sensor not working properly, causing a false screen shutdown.

Managing Background Applications and Auto Start

Aggressive memory cleaning is a signature feature of Xiaomi’s shell: The system can force applications it believes are consuming too much resources, often looking like a sudden “switch off” of the program or even rebooting the launcher interface.

To prevent this, you need to set up auto-run for important applications, which allows the program to run with the system and remain in memory. Without this permission, messengers can not send notifications, and navigators can lose their notifications. GPS-roll-up.

Also, you should check the battery settings for each particular application, and you can select the "No Limits" mode from the "Energy Savings" menu, which will prevent the system from killing the application process, even if the battery is critically low.

• 🚀 Open the Security app and go to the Permissions section.
• 🔋 Select AutoStart and activate sliders for the desired programs.
• ⚙️ In the Battery menu, set the "No Limits" mode for important tasks.
• 🧹 Clean the cache regularly through the built-in optimizer to avoid memory overflow.

Special attention should be paid to applications that require a constant connection to the network, such as activity trackers or a smart home. It is critical for them to have constant access to background processes. If the system still closes them, try to pin the application in the list of recent tasks by pulling the card down.

Diagnostics and calibration of the battery

If the phone turns off when there is a charge (for example, 20-30%), this is a sure sign of the need to calibrate the battery. The power controller can incorrectly read the residual capacity, which is why when a sharp surge in voltage (start the camera or game), the device goes into defense.

Calibration helps the system redefinition of battery capacity, which does not restore physical wear of the chemistry, but corrects the software mapping of percentages, and it is recommended to do this once every few months for older devices.

It's also worth checking the battery usage statistics, and if a process consumes an abnormally high amount of energy in the background, it can cause overheating and subsequent emergency shutdowns, in which case it helps to reset the statistics or remove the problem application.

System update and resetting

Software errors are a common cause of Redmi and POCO instability. Older versions of firmware may contain bugs that cause a bootloop or a spontaneous shutdown. Checking for updates is the first step in resolving software conflicts.

If the update doesn’t work, you may need a full Hard Reset, which returns the phone to factory status by removing all user data and settings that may have caused the conflict.

Sometimes the problem is a specific update that was installed recently, in which case users often resort to rollbacks on a previous version or waiting for a patch from developers, but for ordinary users, the safest way to use a stable update branch is to use it.

• 📲 Go to Settings. → About the phone and click on the version MIUI.
• 💾 Backup through Google Drive or Mi Cloud before resetting.
• 🔄 Reset through the menu Advanced settings → Resetting settings.
• 🔍 Check the community forum for complaints about a specific firmware version.

⚠️ Note: When you complete a full reset, all data (photos, contacts, apps) will be deleted.

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Before resetting, try entering Safe Mode (clutching the off button on your desktop) if the phone doesn't turn off in Safe Mode, it means that the third-party app is causing the problem.

Hardware problems and overheating

If software methods didn't work, it's worth considering the hardware reasons: overheating is the main enemy of electronics. When the critical temperature is reached, the processor lowers the frequencies, and then the system forcibly turns off the device to prevent damage to components.

Often overheating is caused by a faulty battery that warms up when charging, or problems with the motherboard (chip dump).It is also worth checking the on button: if it fuses or has poor contact, the phone can turn off from accidentally pressing in the case or falling.

In winter, lithium-ion batteries lose capacity and can shut down even when fully charged due to the low temperature of the electrolyte, in which case you need to warm the device, but not using open sources of fire or heating batteries.

• 🔥 Watch the temperature of the case: if it is hot, remove the case and let it cool.
• 🔌 Use only original cables and charging units to avoid voltage surges.
• 🔧 Check the power button: it should have a clear click and not fall inside.
• ❄️ Avoid using your phone in extreme cold without additional thermal insulation.

In some cases, especially after a fall or moisture, the battery plume or the power button may go away, and if you're skilled in repairing it, you can gently open the back cover and check the density of the plumes, but you'd better trust the professionals to do that.

Use of Engineering Menu and ADB

Advanced users can access a deeper level of diagnostics through the ADB (Android Debug Bridge) or engineering menu, which allows them to view the actual state of the battery, disable some system checks, or change voltage thresholds to turn off.

With ADB, you can turn off security checks that sometimes mistakenly believe the battery is faulty, and you can also prevent the system from going into deep sleep, which is implemented with errors on some Xiaomi models.

adb shell dumpsys battery


adb shell am set-inactive com.android.shell 1000000

Using these commands requires caution. Incorrect interference with system processes can lead to unstable operation or loss of warranty.

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Comprehensive diagnostics, including software settings and hardware testing, eliminates 95% of cases of spontaneous shutdown of Xiaomi.

Frequently Asked Questions (FAQ)