How to turn off sleep mode on Xiaomi: the complete guide

Owning a modern Xiaomi smartphone means that the device is always available at any time. However, many users are faced with an intrusive feature that automatically turns off the screen or puts the device into standby mode too quickly, which is especially annoying when reading articles, browsing recipes in the kitchen or using the navigator when you want the display to remain active for a long time.

MIUI and the new HyperOS are designed with a focus on energy saving that sometimes conflicts with comfort. Standard algorithms often aggressively limit screen time in an attempt to keep the battery power. Understanding how to manage these parameters is a key skill for any owner of Redmi or Poco appliances.

In this article, we will take a look at all the ways to turn off your sleep timer, not only the basic settings, but also the hidden features that allow you to completely ignore time constraints, and we will look at the nuances of working in different versions of firmware and help you find a balance between autonomy and convenience.

Basic screen timer settings

The most obvious and most commonly used method of controlling backlight time is in the standard settings menu, which is where the Android system sets the main interval through which the user is considered idle, and changing this setting is the first step to solving the problem.

To access these settings, you need to open the main menu and select Settings. Then follow the Screen and Brightness path (or just the Screen in the new versions), here you will see the option Sleep Mode or Time Out of the screen, clicking on it, you will get a list of available time slots.

It's worth noting that the maximum value on the standard list rarely exceeds 5 or 10 minutes, and this is done deliberately by manufacturers to prevent the die from burning out and battery discharge. If you want the screen to burn longer but not continuously, choose the maximum value available.

In some cases, especially on models with AMOLED arrays, the system can force the backlight to shorten at low brightness, a protective mechanism that cannot be circumvented by standard means, but its effect is minimal at medium and high brightness.

Use of the “Do Not Turn Off” Mode for Developers

If a standard timer isn’t enough and you need to keep the screen from going out at all while charging, there’s a special option in the developer menu that’s originally designed to test apps, but is ideal for regular users as a stationary control panel or navigator.

To activate this mode, you first need to unlock access to hidden settings. Go to Settings → About Phone and find the line MIUI Version (or OS Version). You need to quickly click on this line 7-10 times in a row until the notification “You became a developer” appears.

Once activated, go back to the main settings menu and go to the "Additional → For Developers" section. At the top of the list is the "Do Not Turn Off" (or "Stay Awaken") switch, which will burn indefinitely as long as the device is connected to the power source.

⚠️ Warning: Constantly operating the screen at maximum brightness during charging can cause the device to overheat and accelerate battery wear. Use this feature only when necessary.

It is important to understand that this mode only works when the charger is connected. Once you turn off the cable, the standard timer settings described in the previous one will take effect.

This ensures that you don't accidentally land the battery in zero, forgetting to turn off the function.

Disabling blocking when working with applications

Users often confuse a sleep timer with a screen lock, which works even when using apps actively.In the MIUI shell, there is a useful feature "Block in your pocket" and smart lock that can interfere with comfortable use.

You should pay special attention to the settings of a particular application. Some programs, such as video players or navigators, have their own sleep prevention settings. However, system restrictions can overlap them. Check the Battery section → Energy saving applications.

You can select the mode of operation for each program. For critical applications such as Google Maps or YouTube, it is recommended to set a limit No restrictions, this will allow the background processes to work more actively and prevent the system from falling asleep prematurely.

Managing Functions Always on Display

Always On Display (AOD) technology is often seen as an alternative to the constant glow of the screen, but these are different features. AOD only shows the time and notifications on the screen off, whereas our goal is to have an active desktop interface.

Still, the settings AOD Some Xiaomi models may conflict with lock timers. AOD It can reset the timer for deep sleep, and you can check it in the Wallpaper section. → Always On Display.

If you use third-party widgets or themes, they can force their timers to turn on, in which case the standard system settings can be ignored, and make sure that the theme settings do not have a limit on the activity time.

It’s worth remembering that on LCD models, AOD is often absent or software-based, resulting in higher charge consumption, and owners of such devices (often budget Redmi series) are better off relying on an increase in the standard timer rather than AOD.

Third-party screen management applications

When built-in tools are not enough, Google Play comes to the rescue, allowing you to create flexible scenarios, for example, to turn on constant lighting only when you run a navigator or when you connect to a certain Wi-Fi.

One of the most popular solutions is the Keep Screen On app, or analogues, which run on top of the system and require minimal resolutions, and after installation, you just choose a condition where the screen doesn't have to go out.

• 📱 Keep Screen On: Simple interface, running on a schedule or list of apps.
• 🔋 Caffeine: Adds a button to the notification curtain to quickly turn on the “do not sleep” mode".
• ⚙️ MacroDroid: A powerful tool for creating complex macros, such as, “If YouTube is running, then a timer is running.” = never".

⚠️ Note: When installing third-party apps, carefully read the list of permissions you request. Some may require access to your contacts or location without an obvious need.

This is especially true for older smartphone models, where newer versions of MIUI may run unstable or have a reduced functionality, but remember that any additional application is an additional cost of CPU resources.

💡

Use desktop switch widgets to quickly access the “Do Not Turn Off Screen” feature if you frequently change your phone usage scenarios throughout the day.

Impact of the energy saving regime

Energy Saving Mode is the main enemy of long-lasting screens, and when activated, the system aggressively restricts background processes and reduces the time to lock, sometimes ignoring your personal settings.

Check the status of the battery at the top of the screen, and if the yellow icon or the battery icon with the leaf is on, then the saving mode is active, and in this state, trying to set a long sleep timer may be useless.

To disable restrictions, go to Settings → Battery. You can choose Performance or Balanced. There is also Ultra mode, which turns off almost all functions except calls, and it goes down very quickly.

Interestingly, new versions of HyperOS have made algorithms smarter: they analyze user habits. If you regularly change your timer settings, the system may suggest creating an automatic profile that will do it for you at certain times of the day.

Solving proximity sensor problems

Sometimes the screen doesn't go off by the timer, but because the proximity sensor malfunctions or gets contaminated, and it's at the top of the screen, often hidden under glass, and if you hold the phone so that your finger or cover covers that area, the screen will go out instantly.

You can check the sensor through the engineering menu. Type in the code ##6484## (for most Xiaomi models). In the test list, select the Proximity sensor and cover the top of the screen with your hand. The indicator should change color or value.

If the sensor is stuck or not working properly, no settings of the timer will help, in such cases, calibration through the same engineering menu or a simple restart of the device helps, and it is also worth removing the protective glass if it is glued curved and overlaps the touch zone.

💡

If the screen goes off instantly when lifted to the ear or in the pocket, the problem is most likely in the proximity sensor, not in the settings of the sleep timer.

Comparison of settings in MIUI and HyperOS

Xiaomi’s move to the new HyperOS shell has changed the logic of the system, and while the basic principles have remained the same, the location of some menu items and feature names have changed.

In MIUI 14 and earlier versions, screen settings were more disparate. HyperOS tends to combine all display parameters into one powerful partition, making it easier to search, but can confuse those who are used to the old structure.

HyperOS is also using artificial intelligence to control backlighting, which can decide when to brighten the screen and when to dim it based on the content of the image and the lighting in the room, which can create the illusion that the timer is not working properly.

To sum up, Xiaomi’s sleep mode management is a balance between convenience and device resources. Using a combination of system settings, developer mode, and app management, you can customize screen behavior exactly the way you want it to.