How to make the screen does not go out on Xiaomi Redmi 8T: all ways

Why Xiaomi Redmi 8T screen goes out too fast and how to fix it

The Xiaomi Redmi 8T screen automatically shuts down after 30 seconds of inactivity by default — this is the standard power saving setting in MIUI. For most users, such a timeout is enough, but there are situations when constant dimming gets in the way: reading long articles, viewing recipes in the kitchen, using your phone as a navigator or a smart home monitor. Fortunately, there are several ways to increase screen time or turn off auto-out altogether in the Redmi 8T.

In this article, we'll look at all the methods available, from basic settings to hidden developer mode features. AMOLED-screens (as opposed to screens) IPS redmi 8T) constant backlighting can cause pixels to burn out, but for Redmi 8T s IPS-And remember, too, that long-term screen life reduces battery life, so you have to balance the convenience and the consumption of the battery.

If you have previously tried to change the settings, but they were reset after the reboot, the problem may lie in the optimization of MIUI. In this case, you will need to disable automatic cache cleaning for system applications – how to do this, read the appropriate section.

Method 1: Change the screen timeout in standard settings

The simplest method is to increase the time to automatically turn off the screen through the settings menu, which does not require developer or third-party permissions, but has a limitation: the maximum timeout value in MIUI is 10 minutes, for most tasks this is enough.

To change the settings:

• 📱 Open the Settings app** (the gear icon on the desktop).
• ⚙️ Go to the Screen section (or additionally) → Screen in some versions MIUI).
• ⏱️ Find the Sleep item after (or screen timeout) and tap it.
• 🔢 Choose the appropriate value: from 15 seconds to 10 minutes (we recommend starting from 2-5 minutes).

If you don't have a "Sleep After" option on your menu, you're using a stripped-down version of MIUI (for example, for the European region), and then try an alternative route:

1. Go to Settings → Battery and Performance.
2. Select Battery Settings → Sleep Mode.
3. Turn off the automatic sleep mode option.

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If the screen goes out after 30 seconds after you change the settings, check if the power saving mode is activated, and it can override the screen timeout regardless of your settings.

Method 2: Using Developer Mode to Turn Off Timeout

If 10 minutes is not enough, you can completely turn off the screen auto-turning through the developer mode. This method works on all versions of MIUI, but requires pre-activation of hidden settings. Attention: not all options in the developer mode are safe - only change the settings specified in the instructions.

Steps to activate the developer mode:

1. Open the Settings. → The phone.
2. Find the MIUI version and tap it 7 times in a row. You will be notified of becoming a developer!
3. Return to the main settings menu – there will be a new section Additional → For developers.

Now turn off the screen timeout:

• 🔧 Go to the Developers' Form.
• 🔍 Scroll down to the screen block.
• ⏳ Find the Sleep option when connecting to charge (or screen timeout in charging mode) and select Never.
• 🔄 To work from the battery, find Sleep while working from the battery and also install Never.

Is the developer mode activated? | Selected "Never" to charge? | Selected "Never" to run on the battery? | Does the phone overheat (temperature below 40°C)?

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⚠️ Attention: On some firmware MIUI The option is that you may not be able to sleep when you are running on the battery, so the screen will only go out when it is less than 15% or overheated. To circumvent this limitation, use Method 4 (third-party applications).

Method 3: Configure exceptions for individual applications

If the screen needs to be turned on only in specific applications (such as a navigator or music player), you can add them to the exception list, which saves battery life, since the timeout will be turned off only for selected programs.

Instructions for MIUI 12-14:

• 🛠️ Open the Settings. → Annexes → Permits → Auto-start.
• 📌 Find the app you want (like Google Maps or YouTube Music) and enable auto-run for it.
• 🔄 Back to Settings → Battery and productivity → Battery consumption management.
• 🔋 Select the Application Selection and set the desired application mode No restrictions.

For MIUI versions below 12:

• Go to Settings → Battery → Selection of applications.
• Slip on the app and select No Limits.
• Activate the option to Allow background activity.

⚠️ Warning: If the screen goes out after setting the exceptions, check if the application blocks the optimizer. MIUI. To do this, go to the Settings. → Annexes → Application management, select the desired application and disable the option of Cache Clearing when blocking.

Reading long texts|Navigation in the car|Watching videos/streams|Use as a monitor for the camera|Other-->

Method 4: Applications for forced screen switching on

If standard MIUI settings don't allow you to turn off timeout completely, you can use third-party utilities. They work on two principles:

1. Activity simulation: The app sends signals to the system about the screen touching, tricking the sleep timer.
2. Sleep blocking: The utility uses the Android API to force the screen to be active.

The best apps for Xiaomi Redmi 8T:

• 🔹 Keep Screen On is a simple utility with a widget for quickly turning on / disabling the function.
• 🔹 Caffeine – Adds a button to the notification panel to temporarily turn off timeout.
• 🔹 Screen Alive – supports exceptions for individual applications and has a “shake” mode to wake up the screen.
• 🔹 Tasker (for advanced) – allows you to create automatic rules for turning on the screen by time, location or launch of applications.

How to install and configure Keep Screen On:

1. Download the app from Google Play.
2. Launch the utility and grant permission to Overlay over other applications (in the security settings).
3. Activate the Keep Screen On switch.
4. Add a widget to your desktop for quick control.

Method 5: Disabling MIUI Optimization for Stable Operation

One of the reasons that screen timeout settings are reset is aggressive MIUI optimization, which automatically closes the background processes and resets user settings if it considers them “unnecessary.” To avoid this, you need to turn off optimization for system components.

Step-by-step:

• 🔧 Open the Settings. → Annexes → Application management.
• 🔍 In the search bar, enter Security and select Security app (shield icon).
• 🔋 Go to the Battery. → Battery consumption management.
• 📌 Find System Settings in the list and set the No Limits mode.
• 🔄 Repeat the steps for Launcher (Desktop) and System applications UI.

After that:

1. Return to the settings → Battery → Power saving mode.
2. Turn off the option of Automatic Optimization.
3. Reboot your phone to make the changes take effect.

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Disabling MIUI optimization can increase battery consumption by 10-15%, but all settings (including screen timeout) will be saved after the reboot.

Additional Tips for Extending Screen Time

If you use a phone with a constantly on screen often, follow these guidelines to minimize the risk of overheating and quick discharge:

• 🔋 Use a charger: battery consumption is not critical when running from the network. Connect your phone to an outlet or power bank.
• 🌡️ Control the temperature: if the body is heated above 40°C, take a break. Use apps like this. AIDA64 monitor.
• 📱 Reduce brightness: even with a timeout turned off, reducing brightness to 50-70% reduces power consumption by 30 percent%.
• 🔄 Disable unnecessary modules: Wi-Fi, Bluetooth, GPS and NFC They consume charge even in the background.
• 🖼️ Use dark themes: on Redmi 8T s IPS-screen, this slightly saves charge, but reduces the load on the eyes.

For advanced users:

• 🛠️ Install Kernel Adiutor (root required) and reduce the maximum CPU frequency to 1.6 GHz in screen mode.
• 📊 Turn on Force. GPU Rendering in the developer settings - this will reduce the load on the CPU.

⚠️ Attention: Xiaomi Redmi 8T firmware MIUI 12 may not have the option to turn off the timeout in developer mode, in which case the only reliable way is to use third-party applications (Method 4) or install custom firmware (for example, LineageOS).

Frequent problems and their solutions

Even after you set it up properly, Redmi 8T users may experience problems, and here are the most common ones and ways to fix them:

If none of these methods helped, check:

• 🔄 Update. MIUI Up to the latest version in Settings → The phone. → Updating the system.
• 🧹 Clear the cache of system applications in Settings → Warehouse → Cleanup.
• 📱 Reset the settings to factory (pre-reverse the backup!).

FAQ: Answers to popular questions