Xiaomi - Steps to Prevent Background App Killing

1. Disable Battery Optimization for the App

1. Go to: Settings > Apps > Manage apps

2. Find your app and tap it.

3. Tap Battery saver.

4. Set it to No restrictions.

🔒 2. Lock the App in the Recents Menu

1. Open the app.

2. Go to the Recent apps screen (swipe up and hold or use the task button).

3. Swipe down on the app preview or tap and hold it.

4. Tap the lock icon. This prevents the app from being cleared automatically.

⚙️ 3. Turn Off MIUI Optimizations (Advanced)

⚠️ This may have side effects and is more technical.

1. Go to Settings > About phone.

2. Tap MIUI version multiple times until Developer Options are enabled.

3. Go to Settings > Additional settings > Developer options.

4. Scroll down and turn MIUI optimization OFF.

🔋 4. Disable Battery Saver

• Go to Settings > Battery.

• Turn off Battery Saver or Ultra Battery Saver.

📲 5. Auto Start Permission

1. Go to Settings > Apps > Manage apps.

2. Tap the app.

3. Tap Autostart and enable it.