How to make Xiaomi Redmi Note 8T not turned off from inactivity: all ways

Why Redmi Note 8T is offline and how to fix it

You read an important document on the screen, watch a recipe while cooking, or use your phone as a navigator — and suddenly the screen goes out, interrupting the process. Automated shutdown of the display on the Xiaomi Redmi Note 8T (codename willow) is set to default for 30 seconds or 1 minute, which is often too little, and the reason lies in the energy-saving MIUI algorithms that aggressively optimize battery consumption even when it interferes with the user.

In this article, we will look at 5 proven ways to turn off screen auto-turning, from standard settings to hidden features for power users. Importantly, some methods require unlocking the bootloader or root rights, which can affect the warranty, and we will note these cases separately.

If your Redmi Note 8T is running MIUI 12-14 (or a newer version), all the instructions below will remain current. To check the version, go to Settings → About Phone → MIUI version.

Method 1: Change the screen lock time in standard settings

The easiest and safest method is to increase the lock timeout through the settings menu, which will not disable the function completely, but will allow you to set the maximum possible value of 30 minutes.

Instructions:

• 📱 Open Settings (cog icon on the main screen).
• 🔍 Go to the Screen section. → Screen locking.
• ⏱️ Find the Sleep item after inactivity (or timeout lock in older versions) MIUI).
• 🔢 Select the maximum value - 30 minutes.

Limitation: Even 30 minutes may not be enough for long-term tasks (like watching movies or using your phone as a camera monitor).

Make sure your phone is at least 30 times charged%|

Close all background applications |

Check the version of MIUI (Settings → About Phone)|

Backup important data (optional)

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Method 2: Using the Developer Mode to Turn off Sleep

Hidden developer mode in MIUI allows you to turn off the auto-turn off the screen completely, but requires pre-activation.This method works without root rights, but can reset after a system update.

Steps to activate the developer mode:

1. Go to Settings. → The phone.
2. Find the MIUI version and tap it 7 times in a row (you will be notified “You became a developer”).
3. Return to the main Settings menu – there will be a new section Additional → For developers.

Now turn off the screen sleep:

• 🛠️ Go to the Developers' Form.
• 🔍 Find the item Do not turn off the screen (or Stay awake in English version).
• 🔘 Activate the switch.

⚠️ Warning: this only works when you connect your phone to charge. If you need to turn off your battery sleep, use method 3 or 4.

Method 3: Applications for Forced Screen Wake

If the system settings don't work, third-party utilities will come to the rescue, and we tested 3 apps that are guaranteed to work on the Redmi Note 8T:

Important: apps like Keep Screen On can conflict with the energy-saving features of MIUI. If the screen still goes out, add the utility to the battery optimization exception list (Settings → Battery → Battery Optimization → All applications).

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For maximum stability, disable MIUI auto-optimization: go to Settings → Battery → Battery settings and deactivate the Adaptive Battery option.

Method 4: ADB commands to permanently shut down sleep (no root)

If you are ready to use Android Debug Bridge (ADB), You can turn off the auto-turning of the screen at the system level. USB-cable.

Step-by-step:

1. Download and install ADB Tools on PC.
2. Turn on USB debugging on your phone (Settings → Developer).
3. Connect the Redmi Note 8T to your computer and confirm a trusted connection.
4. Open the command prompt (Windows) or terminal (macOS/Linux) in the folder with ADB.
5. Run the command to check the connection: adb devices (should display the serial number of your device).
6. Enter the command to turn off sleep: adb shell settings put global stay_on_while_plugged_in 3 (significance 3 Turns off sleep on the battery and when charging).

To return the standard settings, use:

adb shell settings put global stay_on_while_plugged_in 0

⚠️ Attention: After a phone restart or update MIUI setting ADB For permanent effect, you will need to repeat the procedure or use Tasker to automatically apply the command.

Method 5: Modification of system files (root only)

This method is only suitable for power users with unlocked bootloader and root rights, and allows you to completely remove the restriction on sleep time, but risks disrupting the stability of the system.

Instructions:

• 📲 Install a root-enabled file manager (such as Root Explorer or Solid Explorer).
• 🔍 Cross the path: /system/etc/device_features/
• 📝 Find the file. willow.xml (For the Redmi Note 8T) Open it in the text editor.
• 🔧 Add a line: <bool name="config_supportStayOnWhenPluggedIn">true</bool>
• 💾 Save the file and restart the phone.

Alternatively, edit the /system/build.prop file by adding a line:

ro.config.stay_on_while_plugged_in=true

⚠️ Warning: Incorrect editing of system files can lead to bootloop ( looped boot).Before changes, back up through TWRP Or OrangeFox Recovery.

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The root-rights method gives you maximum control, but it gives you no guarantee and increases the risk of failure, and only use it if other methods have not worked.

Additional tips: how to reduce battery consumption when you sleep off

Turning off the screen automatically increases battery consumption. To minimize the impact, follow these guidelines:

• 🔋 Use dark themes (AMOLED-Redmi Note screen 8T It consumes less energy when displaying black).
• 📉 Reduce the brightness of the screen to a comfortable minimum (Settings) → Screen. → Brightness).
• ⚡ Turn off Autobrightness – manual setting saves charge more accurately.
• 🔄 Turn on Adaptive refresh rate (if available) to keep the screen running at a reduced frequency (60 Hz instead of 90 Hz).
• 🚫 Close the background applications that are actively used CPU/GPU (For example, games or navigators).

Also check which apps drain the battery the most: go to Settings → Battery → Battery Use. If messengers (such as Telegram or WhatsApp) are in the top, limit their background activity in the battery settings.

FAQ: Frequent questions about turning off screen sleep on Redmi Note 8T