How to turn off sleep mode on Xiaomi: from timer to energy saving

Modern smartphones Xiaomi and Redmi line running the shell MIUI or the new HyperOS, equipped with complex power management algorithms. Often users are faced with a situation where the screen goes off too quickly, interrupting reading or watching video, or the device does not go to sleep when necessary. Understanding how to remove sleep mode on the Xiaomi phone is the key to comfortable use of the gadget in all conditions.

The problem can be both standard screen timeout settings and aggressive energy saving systems that force the background to sleep. In this article, we will examine all levels of settings in detail, from the basic lock timer to the hidden developer parameters that allow you to fully control the behavior of the display.

The incorrect configuration of these parameters often leads to a quick battery discharge or, conversely, to a burnout matrix. It is critical to distinguish between the screen lock timer and the CPU sleep mode, since these functions are controlled by different system services.

Basic setting of the screen lock timer

The first step in solving the problem of too fast screen suppression is to check the standard timer. In most cases, users confuse the "sleep mode" of the system with a simple locking of the display. To change the time after which the screen turns black after inactivity, you need to go to Settings → Screen and brightness → Sleeping mode.

Here you will see a list of available time intervals, usually ranging from 15 seconds to 10 minutes. Choosing the option “Never” or “No timeout” allows you to leave the screen on indefinitely until you lock the device yourself. However, using a permanent turn on carries risks for OLED-matrixes, which are prone to burnout static elements of the interface.

It is worth noting that on some models Xiaomi with AMOLED-The "No Time Out" option may not be available on the standard menu, a restriction that the manufacturer has introduced to protect the display. In such cases, the system forcibly puts the screen into sleep mode after 10 minutes, ignoring user preferences, unless you use special applications or developer modes.

⚠️ Warning: Leaving the screen on at maximum brightness for hours can cause pixels to burn out and “ghost” images to appear on the display.

If you don't have a standard time list and want to set up more flexible scenarios, you should look at additional shell features, such as using In-pocket mode or proximity sensors, which can affect how quickly the screen goes out.

Management of MIUI energy saving modes

The second layer of sleep control is system energy saving profiles. The MIUI shell is known for aggressive battery optimization, which often interferes with applications and system processes. To remove constraints, go to Settings → Battery and select the current mode of operation.

In either Energy Saving or Ultra-Saving mode, the system enforces a back-end limit and reduces the time it takes to go to sleep, and for full control, you need to switch to Performance or Balance mode, and in these modes, the restrictions are removed, and the phone behaves more predictably from the user's point of view.

Special attention should be paid to the list of applications that are allowed to work in the background. If a particular application (such as a navigator or reader) goes into sleep mode and loses connection, it should be added to the exceptions. This is done through the App menu → Settings → Special features → Autostart and battery settings for a particular application.

• 🔋 Performance mode: Removes all restrictions CPU and display, maximizing power consumption.
• ⚖️ Balance mode: Optimal ratio between operating time and system performance.
• 🛡️ Ultra-savings: Leaves only basic features, tightly limiting screen time.
• 📉 Optimization MIUI: Automatic algorithm that can “kill” processes.

It's important to understand that even when you choose a high-performance mode, the system can force the device to sleep when it overheats, and thermoregulation is a safety priority, and you can't software-bypass it with standard methods without the risk of damaging the hardware.

Settings for reading and permanent display

For users who use a smartphone as an e-book or navigator, there is Read Mode and the ability to exclude applications from sleep mode. In new versions of HyperOS, these settings have been reworked to improve convenience. To keep the screen from going out while reading, you can activate the “Keep the screen on” function in the settings of a particular application.

Go to Settings → Screen and brightness and find a paragraph related to reading mode or special features. Here you can adjust the color temperature and, more importantly, the behavior of the timer for certain use cases. Some Xiaomi models allow you to set different timers for different applications.

Also worth mentioning is Always On Display (AOD) feature, which does not prevent the main screen from going to sleep, but allows time and notifications to be displayed on the display off without fully waking the device, saving the matrix life compared to the constant glow of the entire screen.

Using third-party apps to hold the screen (Keep Screen On) is a last resort, they work by emulating touching or playing invisible video, which can conflict with the system processes of Android.

Advanced settings through the developer menu

For advanced users who don't have the standard settings, there's a developer menu. To get there, you have to click on the build number several times in the About Phone menu. Once activated, a new section will appear in the main settings. → For developers.

There are many things that can affect how the system behaves in this section, and we're interested in the "Stay awake" option, which is that when you activate this option, your smartphone screen won't go into sleep mode while you charge your device, which is ideal for using your phone as a desktop clock or a smart home control panel.

You can also find animation and zoom settings that indirectly affect how you feel about performance, but be careful: changing the parameters associated with the CPU and rendering can lead to unstable system operation.

⚠️ Warning: Turning on the “Do not turn off screen” option without a connected charger will result in a quick battery drain and possible overheating, as the screen will burn constantly.

Another useful feature is to disable locking when connected to trusted devices (smart watch, car).This is configured via Settings → Passwords and security → Smart Lock. While this does not cancel the screen’s sleep mode, it eliminates the constant input of a password every time you wake up.

Impact of system updates and MIUI bugs

Often, sleep problems arise after a firmware update. Xiaomi engineers constantly change the algorithms of the background processes. If after the MIUI update your phone began to behave strangely (the screen goes out instantly or does not go out at all), it is worth checking for new patches or, conversely, roll back to the previous version.

There is a problem when the cache of system services causes conflicts after an update, in which case it helps to clear the cache through Recovery mode or completely reset the settings. Before updating, it is always recommended to back up data, as new versions of the software may not be optimized for older device models.

Keep an eye on official forums and communities. If the bug is massive, it's quick to get information about it, sometimes waiting for the next security patch to fix the bugs in the display drivers helps.

• 🔄 Check for updates: Check for new versions of the system regularly.
• 🗑️ Cache Clearing: Delete temporary files after major updates.
• 📉 Reverse version: In extreme cases, you can return to a stable assembly.
• 🌐 Device Region: Changing the region in settings sometimes changes the set of system functions.

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If the screen timer is lost after the firmware update and the slider is grey (inactive), try changing the device region to India or Singapore, restarting the phone, and then returning your region.

Solving problems with sensors and sensors

Sometimes the screen goes off not by the timer, but by falsely triggering the proximity sensor, which is a common problem when using poor-quality protective glasses or when the top of the screen is contaminated, and the sensor thinks the phone is near the ear, and turns off the display.

Use the engineering menu to diagnose. Dial ##6484## (may vary depending on the model) and select the sensor test. Check the proximity sensor response. If it shows "Close" when nothing is near the screen, the problem is hardware or calibration.

Calibration of the sensor can be done through the same engineering menu or special applications from the Play Market, also helps the usual cleaning of the speaker area and the front camera from dust and grease, in some cases, helps to disable the function "Mode in pocket" in the locking settings of the screen.

If the screen, on the contrary, does not go out in the pocket and heats up, this can lead to a pocket set and discharge. In this case, on the contrary, the sensitivity of the sensor is too low. Check if the case does not overlap the light sensor.

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False alarm of the proximity sensor is the most common cause of spontaneous screen quenching during a conversation or watching video in horizontal mode.

FAQ: Frequently Asked Questions