Other vendors

Story

Whatever device you are using, don’t blame the developers as the first thing when something goes wrong. First check your phone settings whether some background processing is not restricted on your device.

See below for general solutions that apply for various vendors.

Android 6+

Always check the following setting:

• on older devices:
  Phone settings > Battery & power saving > Battery usage > Ignore optimizations > Turn on to ignore battery optimization for your app.

• on newer devices:
  Settings > Apps > Your app > Battery > Optimize battery usage > All (from the top) > Your app (toggle to disable).

Android 8+

Check if Phone settings > Apps & Notifications > Your app > Background restrictions or Background limits are not enabled for the app.

If all fails you can turn Doze mode off completely.

Turn off doze on Android 6.0 and earlier

In Settings > Developer options. (If you don’t know how to enable developer options, Google should help.)

Turn off doze on Android 7+

Requires expert skills

dumpsys deviceidle disable

If all fails

Look for any vendor-specific battery saver on your device and ideally uninstall if possible, disable if possible.

If not, you are left with the option to root your device or uninstall it though adb (requires some expert skills though):

adb shell

pm uninstall --user 0 com.useless.piece.of.trash

Look through the vendor-specific phone settings and search for anything related to battery optimization or background processing. If you find it try to disable it.

Try the generic approach below as some vendors tend to hook more functionality into this than AOSP

Phone settings > Battery & power saving > Battery usage > Ignore optimizations > Turn on to ignore battery optimization for your app.