Many users of Xiaomi, Redmi and Poco smartphones face an unpleasant situation: the device suddenly turns off at certain times of the day without the owner’s knowledge. Most often, the cause is an activated automatic power management feature, which by default can be enabled in the system or activated by third-party optimizer applications. This is not only annoying, but can lead to the skip of important calls or notifications at night.
To solve this problem, you need to find the appropriate switch in the settings menu, which is often hidden in the sections related to the battery or special features. In different versions of the MIUI shell and the new HyperOS, the location of the elements may vary slightly, but the logic of the system remains the same. You need access to a full settings menu and a few minutes of free time.
In this article, we will take a closer look at all possible pathways leading to this feature, including hidden engineering menus and power saving settings, how to prevent an unplanned shutdown and what options might conflict with your goal of keeping your phone on around the clock.
⚠️ Warning: If your phone turns off on its own at random times rather than on a clear schedule, this may indicate a battery malfunction or processor overheating, rather than a software setup.
Search for function in the standard MIUI and HyperOS menus
The first place to look for the source of the problem is the basic system settings. In modern versions of the shells from Xiaomi, the power scheduler function is often moved or hidden in the submenu of special features. The standard path can look like Settings → Battery → Planner, but in recent updates this item often migrates.
If you don't find the right switch in the battery section, try searching by settings. Click on the magnifying glass at the top of the settings screen and type in "timetable" or "auto" and the system will tell you where the menu item is hidden, which is the fastest way to navigate the confusing parameter structure.
In some regions of the firmware, this feature may be called "Automatic Turn on and Off," and you need to find this item and put the slider inactive, and then the phone will stop responding to timestamps and will work normally until you decide to turn it off.
💡
Use a Settings search by entering the keywords “on” or “off” to instantly find a hidden switch that is difficult to detect manually.
Note that in some cases, settings can be spread out into different tabs depending on the Android version. For example, on Android 11, the path is one, and on Android 13 or 14, the menu structure can be changed by developers to improve the user experience. So if you don't see the item right away, check the adjacent sections.
Settings through the Security app
A unique feature of Xiaomi smartphones is the availability of the system application Security, which is where many optimization tools that can control the power of the device regardless of the main settings of the system are concentrated.
To check your settings, open the Security app and look for the Battery or Energy Savings section. The top right corner of the screen usually has a settings icon (cogs) or a three-dot menu.
- 🔋 Find the item "Power Planner" or "Auto-on/off".
- 🔋 Check if the check boxes are set in front of the on or off points.
- 🔋 If the time is set, disable this function completely by shifting the switch.
It's important to understand that the Security app has a higher priority than some custom settings. If you've disabled a feature in the main menu but it's still active here, the phone will continue to shut down on schedule, so checking this section is a must to fully resolve the problem.
☑️ Checking the application Security
Hidden settings and engineering menu
If standard methods didn't help, it's possible that the setting was changed at a deeper level or activated via a hidden menu.To access advanced features, Xiaomi engineers have provided special codes that open access to test modes.
To enter the engineering menu, open the Phone app and type the combination ##6485##. This command will open the MTK or Qualcomm menu (depending on the processor), which displays detailed battery information. However, different code or a search inside this PowerOnOff menu is more often used to manage the schedule.
In the list of parameters that opens, look for lines containing words. AUTO_POWER_ON or AUTO_POWER_OFF. True means that the function is active and false means that it is disabled, and changing these values may require root rights or special permissions, but in some firmware, this can be done directly.
⚠️ Warning: Do not change the parameters in the engineering menu unless you are sure of their purpose.Incorrect settings can lead to unstable phone operation or loss of warranty.
There's also a universal code ##4636## that opens the test menu. Go to Phone Information and scroll down. Although schedule settings are rare, manufacturers sometimes add regionally specific power management features to the test menu.
Impact of energy saving and optimization mode
Power saving mode is another suspect that can initiate a phone shutdown. When the battery drops below a certain level (e.g., 10% or 5%), the system can automatically turn off the device to save residual charge for emergencies, this behavior can be adjusted or turned off.
Go to Settings → Battery and find the settings for the power saving mode. This may be "Switch off at low charge" and make sure it's deactivated if you want your phone to run until the battery is completely depleted.
There are also third-party software-cliners and optimizers that users often install on their own, and programs like Clean Master or DU Battery Saver may have their own task schedulers that conflict with MIUI system settings.
- 📉 Check the list of installed applications for the presence of "cleaners".
- 📉 Go to the settings of each suspicious application.
- 📉 Turn off any automatic shutdown or deep cleaning features on schedule.
Why does the phone turn off at 20% charge?
Comparison of tracks in different versions of MIUI
Users are often confused, as the path to the same feature can change dramatically from version to version. Below is a table that will help you navigate depending on your version of the system, which will simplify your search and save time.
| MIUI/HyperOS version | The path to adjustment | Switch location |
|---|---|---|
| MIUI 11 - 12 | Settings → Battery | Planner tab |
| MIUI 13 - 14 | Settings → Additional functions | Item "Planned on and off." |
| HyperOS 1.0 | Settings → Battery | The bottom of the list |
| Global ROM | Security Annex | Section "Battery" → Settings |
As you can see from the table, in older versions, the feature was often directly in the battery menu, whereas in the new MIUI 13-14 it was moved to "Additional Features." In HyperOS, the developers returned some items to the battery menu, but changed the interface. It is critical to accurately identify the version of your firmware in the About menu to know which path to look for.
If neither path works, maybe your particular firmware build has a unique structure, so using settings search is the most reliable method, just type off and the system will find the right label.
Solving problems with third-party software and widgets
Sometimes the reason for the shutdown is not system settings, but widgets on the desktop or installed applications. Watch widgets, calendar widgets or specialized alarm utilities may have power management permissions.
Check the list of applications with extended rights. Go to Settings → Applications → Permissions → Special permissions. Go to "Changing system settings" or "Power management." If you see an unknown application there, explore its capabilities and uninstall it if necessary.
You should also look at automation scenarios if you use apps like MacroDroid or built-in automation features in MIUI. The once-created “Switch off your phone at 23:00” scenario can be performed regularly, even if you’ve forgotten about it for a long time.
⚠️ Warning: Before removing system applications or widgets, make sure they are not critical to operating system operation to avoid errors.
Deleting suspicious software often solves the problem instantly, and if the phone stopped shutting down on schedule after removing the app, it means the cause was right. Always analyze which new apps you installed before the problem occurred.
FAQ: Frequently Asked Questions
Why does the phone turn off even if everything is turned off in the settings?
Can I set the shutdown only on weekdays?
Does the resetting of settings affect the shutdown schedule?
Will the alarm clock work if the phone is off on schedule?
💡
Disabling auto-switch function completely requires checking three places: the main settings, the Security app, and a list of third-party optimizers.