The auto-shut function on Xiaomi Redmi smartphones often irritates users, with screens going out too quickly while reading, phones spontaneously disconnecting from their sleep timer, interrupting important processes, and the manufacturer adds these options to save battery life, but they are not always convenient for everyday use.
In this article, we will discuss all possible scenarios: how to increase the time before the screen is turned off, how to completely turn off the sleep timer, and what to do if the phone turns off on its own due to firmware failures. The instructions are relevant for all Redmi models (from Redmi 4X to Redmi Note 13 Pro+) based on MIUI 12-14 and HyperOS. Also consider the hidden settings available through ADB, and give recommendations for the diagnosis of hardware problems.
If your Xiaomi shuts down for no apparent reason, it's not always the fault of the software settings. Sometimes the problem is a discharged battery, overheating or a power controller failure. We'll separate the sections where we explain how to distinguish software auto-outage from hardware failure, which is critical for choosing the right solution.
1. How to increase screen auto-disconnection time
The most common complaint of users is that the Redmi screen goes out after 10 to 30 seconds of inactivity, even if you are reading an article or watching a video, which is due to the screen latency settings, which are set to minimum values by default to save charge.
To change that:
- Open the Settings β Screen.
- Select Sleep Mode (or screen timeout in newer versions of MIUI).
- Set the desired time: from 15 seconds to 10 minutes (maximum).
- For models with Always-On Display (e.g. Redmi K60), you can also turn off this feature if it interferes.
Note that on some firmware, the option is hidden behind the option Additional screen settings. If you do not have the desired setting, check the version of MIUI in Settings β About phone.
Make sure your phone is over 20 times charged%|
Close all applications that consume resources |
Check if the energy saving mode is on |
Restart the device if the settings do not apply-->
β οΈ Note: If the screen goes out too quickly after the time change, the problem may be optimizing the battery for specific applications, such as YouTube or Chrome, which can force the phone to sleep. β Battery β Optimizing the battery β All applications and select without restrictions.
2. Turn off the timer of automatic power outage
Some users experience Xiaomi Redmi shutting down completely after a certain period of time (for example, after 1-2 hours of inactivity), which may be due to the Auto Shutdown feature, which is activated in the sleep settings or through parental control.
To disable this function:
- π Go to Settings. β System and device β Additionally. β Sleep timer.
- π If there is no item, check the settings. β Special facilities β Universal access β Shutdown timer (on some firmware).
- βοΈ Turn off the slider or reset the time until Never.
- π If the settings are not saved, try resetting the Settings app cache via Settings. β Annexes β Application management β Settings β Warehouse β Clear the cache.
On MIUI models for POCO (e.g. Redmi Note 12 Pro Speed), the path may be different:
Settings β Battery and performance β Sleep timerWhat to do if the sleep timer is not on the menu?
β οΈ Warning: If the phone turns off when connecting to a charge, the problem may be a faulty power supply or cable. check the charger on another phone - if the problem recurs, replace the accessory.
3. Auto shutdown due to energy saving mode
The Xiaomi Redmiβs Ultra Power Saving (or Super-charge saving) feature can force the phone to shut down when the charge level is low (usually below 5-10%), to prevent the battery from running out completely, but sometimes it fails.
To disable or configure this mode:
- Go to Settings β Battery β Energy Saving Mode.
- Select Turn Off or set the trigger threshold (for example, set 1% instead of 10%).
- For models with HyperOS, the path may be different: Settings β Battery β Battery settings β Energy saving.
Also check the adaptive battery settings:
- π± Open the Settings. β Battery β Adaptive battery.
- π Turn off the option to limit the background for applications if it is active.
- π Make sure that important apps (messengers, navigators) are added to the exceptions.
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If the phone turns off at 20 to 30 percent charge, it could indicate battery wear. Check its condition through the AccuBattery app or the built-in diagnostics: Settings β Battery β Battery β Battery status.
4. Diagnostics of hardware causes of auto-switching
If all the software settings are checked, but Xiaomi Redmi continues to shut down on its own, the cause may lie in a hardware malfunction.
| Reason. | Symptoms | Decision |
|---|---|---|
| Worn-out battery | The phone turns off at 15-30% charge, quickly discharges | Replacement of the battery in the service center |
| Processor overheating | Auto-turn off when playing or charging, the body is hot | Dust cleaning, replacement of thermopaste (for collapsible models) |
| Failure of the power controller | The phone does not turn on after switching off, requires connection to the RMS | Repair or replacement of motherboard |
| Short circuit on the battery plume | Accidental reboots, phone doesn't hold charge | Diagnostics in the service, replacement of the plume |
For initial diagnosis, follow the following steps:
- π Check your phone for overheating: run a performance test (e.g., in the CPU Throttling Test and monitor the temperature.
- π Connect to another power supply: if the auto-off goes missing, the problem is in the charger.
- π οΈ Reset the settings to factory: Settings β The phone. β Reset settings (pre-do backup!).
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If the phone only turns off when connected to charging, there's a 90% chance the power supply or cable is a problem.Use Xiaomi's original Quick Charge-enabled accessories (like 33W charging for the Redmi Note 12).
5. Disable auto-switch off via ADB (for advanced)
If the standard settings do not help, you can use ADB-This is a method that is suitable for advanced users and requires connecting the phone to a PC.
Instructions:
- Turn on Developer Mode: Go to Settings β About Phone and click on MIUI Version 7 times.
- Activate USB Debugging in Settings β Additional β For developers.
- Connect the phone to your PC, install ADB drivers and open the command line.
- Enter the command to check the connection: Adb devices should appear the name of your device.
- To turn off your sleep timer, do: adb shell settings put global stay_on_while_plugged_in 3 (where 3 β The "always on" mode when charging").
Other helpful teams:
- π Set the time to auto-disable the screen on 10 minutes: adb shell settings put system screen_off_timeout 600000
- π Disable Adaptive Brightness (may affect auto-off): Adb shell settings put system screen_brightness_mode 0
β οΈ Attention: Misuse of the right ADB It can cause system failure or data loss.Before experimenting, back up through Settings β Additionally. β Backup and reset.
6. Frequent mistakes and how to avoid them
When setting up an auto-off, users often make mistakes that lead to the opposite effect.
Mistake 1: Ignoring battery optimization for applications
Many people wonder why the screen goes out while watching YouTube or TikTok videos, even though the wait time is set at 10 minutes, because MIUI aggressively optimizes the background processes.
- π΅ Open the Settings. β Battery β Optimizing the battery.
- π Find a problem app (like YouTube) and select Unlimited.
- π Reboot the phone.
Mistake 2: Using third-party βoptimizersβ
Apps like DU Battery Saver or Clean Master often conflict with Xiaomiβs system settings by forcefully turning off the screen or restarting the phone. Delete them through Settings β Apps and check if the problem persists.
Mistake 3: Misinterpretation of overheating.
If the phone turns off at high load (games, 4K video), it doesn't always fail, because that's how overheating works. Check the temperature through the AIDA64 app:
- π‘οΈ Normal: up to 45Β°C in normal work, up to 60Β°C under load.
- β οΈ Critical: above 70Β°C β Requires cleaning or replacement of the heat paste.
7. Alternative solutions: applications and automation
If the built-in MIUI settings don't allow you to flexibly configure auto-turnoff, you can use third-party tools.
1. Appendix MacroDroid
It allows you to create automatic rules, such as:
2. Tasker (for advanced users)
It's more flexible, but it needs to be customized.
3. Keep Screen On (Simple Solution)
The app adds a button to the notification panel that forces the screen to be turned on until you turn it off, convenient for temporary use, but consumes additional charge.
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If you use your navigator frequently (Yandex.Maps or Google Maps), add it to the Battery Optimization Exceptions and set maximum screen time.