Xiaomi and their Android customization called MIUI belongs in the most troubled group on the market with respect to non-standard background process limitations and non-standard permissions.
In default settings, background processing simply does not work right and apps using them will break.

See below for how you can fix it.

Basic setting

  1. In the recent apps tray, long-press Pomodoro app and then choose the hexagon icon

2. Make sure settings for your app look like this

3. Allow all permissions

4. Most importantly, choose "No restrictions" so the app can run in the background

Advanced for specific devices

Power management

Please enable:

  • Settings > Advanced Settings > Battery manager > Power plan is set to Performance

  • Device Settings > Advanced Settings > Battery Manager > Protected appsPomodoro app needs to be Protected

  • Device Settings > Apps > your app > Battery > Power-intensive prompt and Keep running after screen off

  • Settings > Additional Settings > Battery & Performance > Manage apps’ battery usage and here:

    1. Switch Power Saving Modes to Off

    2. Choose the next options: Saving Power in The Background > Choose Apps > select Pomodoro app > Background Settings > No restrictions

App battery saver

Security > Battery > App Battery Saver > Pomodoro app > No restriction


Open Security app > Permissions > Auto-start

Enable "Autostart" for Pomodoro app.