Xiaomi’s current smartphones, which are powered by the MIUI shell or the new HyperOS, have advanced energy-saving systems that automatically extinguish the display in the absence of user action, a feature critical to keeping the battery power and preventing accidental taps in your pocket, but in some situations it becomes a serious obstacle to comfortable operation. Users often face the need to leave the display on for a long time, whether it is navigating in the car, reading recipes in the kitchen, tracking stock trading schedules or using a smartphone as a desktop clock.
The problem of constant screen dimming is especially relevant for those who use a smartphone as a second monitor or information panel. Standard system settings do not always allow flexible management of time intervals, and in some firmware, the maximum limit is limited to two minutes, which is categorically inconvenient. In this article, we will discuss in detail all available ways to circumvent restrictions, from regular menus to the use of specialized utilities and engineering modes.
It is important to understand that forced retention of the display in an active state significantly increases energy consumption and can lead to overheating. OLED-So we need to be mindful about these techniques, and we're going to look not only at how you activate the perpetual screen, but also at the nuances of the proximity sensor, which can turn off the image regardless of the timers of the system. Competent setting of these parameters will allow you to adapt the operation of the device to your specific needs without compromising the stability of the system.
Basic timeout settings of the display in MIUI and HyperOS
The first and most obvious step is to refer to the standard operating system settings. In the shells from Xiaomi, the path to these parameters may vary slightly depending on the version of Android and the specific interface modification. Usually the settings are in the Settings → Screen and brightness → Sleep mode. Here the user is asked to choose a time interval after which the device will go to standby.
It is worth noting that the list of available options is often limited to standard values: 15 seconds, 30 seconds, 1 minute, 2 minutes and 5 minutes or 10 minutes. If your list does not include the item "Do not turn off", then the usual means of the system will not achieve the desired result. In such cases, the system forcibly extinguishes the matrix to save battery life, ignoring the desire of the user to leave the picture static.
For owners of certain models with AMOLED-The screens may be available AOD (Always On Display, which, however, only shows simplified graphics, not a full-fledged application interface, is suitable for using a smartphone as a watch, but is useless for reading text or navigation. If standard functionality is not enough, you need to move to more advanced configuration methods.
- 📱 Go to the Settings menu through the gear in the notification curtain.
- 🔍 Find the Screen and Brightness section or just the Screen.
- ⏳ Select Sleep Mode (or Screen Timeout).
- ✅ Set the maximum possible value of time.
Using Developer Mode to Turn Off Timeout
If the standard menu doesn't offer the flexibility you need, the hidden Developer section comes to the rescue, which is designed for testers and engineers, but it has useful features for advanced users. To activate it, you need to go to Settings → About phone and quickly click on the MIUI or HyperOS version seven times. Once you become a developer, a new option will appear in the settings menu.
Inside the developer section, you should find an option that is often called "Don't Turn Off the Screen" or "Stay Awaken" and when you activate this switch, the smartphone display will remain on as long as the device is connected to the power source, which is the ideal scenario for using the smartphone as a navigator in the car or an information panel on the desk where the gadget is constantly on charge.
⚠️ Warning: Activation of the "Don't You" screen in developer mode only works when the charger is connected. If you turn off the cable, the screen will go out after the standard time interval set in the main settings.
However, be careful with the constant use of this mode. Prolonged operation of the display at maximum brightness when connected charging can lead to degradation of organic LEDs (pixel burnout) and excessive heating of the body. It is recommended to use this function only when necessary and periodically allow the device to cool down.
- 🛠 Open the Settings. → The phone.
- 👆 Press 7 times on the build number (MIUI Version).
- 🔧 Go to the Supplementary → For developers.
- ⚡ Find and turn on the item Do not turn off the screen.
💡
When using the developer mode to navigate in the car, try not to leave the phone in direct sunlight, as the combination of heat from the sun and a running screen can damage the battery.
Third-party screen management applications
When built-in capabilities are not enough, there are many specialized applications on the Android market that allow you to flexibly manage display behavior. The most popular solutions are utilities like Caffeine, Keep Screen On or Screen On Pro. These programs run on top of the system and block the transition of the smartphone to sleep mode by timer, mimicking user activity or using system APIs to hold wakelock.
The thing about these apps is that you can customize scripts, for example, you can set a rule that the screen doesn't go out in certain applications (like a navigator or a reader), and the rest of the time the system is running normally, so you can save energy without sacrificing the usability of specific services. Some programs also allow you to control brightness and color temperature regardless of system constraints.
When installing third-party software, it is important to pay attention to the permissions requested. To work properly, the application requires access to screen control and possibly the right to work in the background. In the MIUI shell, an aggressive energy saving system can try to “kill” such an application, so it must be added to the exclusion list and allowed to auto-start.
☑️ Setting up the screen app
Specificity of the approximation sensor and its impact
Even if you successfully set up a timeout or used an app, the screen can go out when you bring your smartphone to your face or when you are in a magnetic clasp case, and this is due to an approach sensor that is often located at the top of the screen or built into the speaker. In Xiaomi smartphones with a virtual sensor (ultrasonic), false positive problems are more common, especially when there is a protective film or contamination.
If the screen goes out while talking or watching a video while the phone is lying on the table, it may be that the system is misinterpreting the sensor data. In the settings, you can try to calibrate the sensor or temporarily disable the lock function from approach. The path to calibration is usually hidden in the engineering menu, which is called by the code ##6484# in the phone application.
In the engineering menu (CIT), you need to find the Proximity sensor test and follow the instructions on the screen to calibrate. If the software calibration doesn't help, the problem can be physical: cracked glass, improperly pasted film or factory defect of the sensor. In such cases, software methods to turn off the timeout will work, but the screen will still go out under certain conditions.
| Symptoms. | Probable cause | Method of decision |
|---|---|---|
| The screen goes out in your pocket | Normal operation of the sensor | Not required, it is protection against accidental calls. |
| Extinguishing during a conversation at the cheek | Sensitive proximity sensor | Calibration in CIT or film replacement |
| It does not fade when you bring it to your ear. | Pollution or software failure | Cleaning the top of the screen, rebooting |
| Gasnet while watching the video lying down | False sensor operation | Disabling the function "Blocking from accidental presses" |
How to enter the engineering menu of Xiaomi?
Use scenarios and task automation
Instead of manually switching settings, it's much more efficient to use automation. The MIUI shell has a built-in scripting app (or shortcuts) that allows you to create chains of action. You can create a script that says, "If Google Maps is running and geolocation is enabled → Set a screen timeout for 10 minutes." When you close the navigator, the settings will go back to standard.
For more complex logic, you can use third-party automation systems like Tasker or MacroDroid, which allow you to control almost every aspect of a smartphone's operation, for example, you can set up a rule: If the phone is connected to the Wi-Fi network 'Home' and lies on the charger. → Disable sleep mode. This eliminates the need to get into the settings every time you want to use your smartphone as a digital photo frame or smart home panel.
Automation is also useful for screen protection, and you can set up a scenario that minimizes brightness if the screen is supposed to burn for a long time, but the user is not actively interacting with it, which helps reduce the risk of burnout of static interface elements, such as toolbars or keyboards.
- 🤖 Open the application Scripts on the desktop.
- ➕ Click "Create a Script" or "+" corner.
- 🎯 Select a condition (launch the application, connect charging).
- ⚙️ Add Action: Change screen settings or brightness.
💡
Automation is the best way to balance convenience and energy saving, as settings only apply when they are really needed.
Problems with burnout and resource conservation of the matrix
Using a smartphone with a constantly on screen carries risks that should not be forgotten. OLED technology, used in most flagships Xiaomi, is prone to burnout — irreversible change in the color of individual pixels during prolonged display of a static picture. If you plan to keep the screen on for hours, be sure to use features that prevent this process.
Many reading or navigation apps have built-in Night Mode themes or color inversions, which reduces the load on organic LEDs. It is also recommended to periodically change the content on the screen or use live wallpapers that constantly change the brightness distribution across the matrix. In the developer settings, you can find the "Shift of the screen" (if available), which unobtrusively shifts the image by several pixels.
Control the temperature of the device. If you notice that the smartphone is heating very much and the screen continues to burn at maximum brightness, it is better to artificially limit the brightness or let the device rest. Overheating accelerates the aging of the battery and can cause the adhesive layer of the matrix to detach from the body.
⚠️ Attention: Static interface elements, such as navigation bars, keyboards or channel logos, burn out first. Avoid long-term display of static images in high brightness.