For OPPO devices

ColorOS blocks background work unless Autostart, background running, and Recents lock are allowed for Safe Lagoon.
Written by Denis
Updated 1 week ago

On the child's OPPO / ColorOS phone:

  1. Settings → App management → Safe Lagoon → Allow auto startup.
  2. Allow Background running / disable background freeze for Safe Lagoon.
  3. If there is a Security / Phone Manager app: Privacy permissions → Startup manager → allow Safe Lagoon.
  4. Settings → Battery → turn off Smart power saving / high background power limits for Safe Lagoon.
  5. Recents → Safe Lagoon → Lock.

Accessibility: Settings → Accessibility → Safe Lagoon → On. Battery: Unrestricted if the menu exists.

Older R9 / R11 menus are gone; if you still have one, uncheck every battery restriction listed under Safe Lagoon.

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