Background Mobile App permission in Oppo A57

Background App Permission

1. Go to Security

   

2. Click on Privacy Permissions

   

3. Click on Startup Manager

   

4. Finally On the check box of app

   

5. Press back button

6. Click on App permission management

   

7. Click on send message

   

8. Click on System messages

   

9. Click on Allow

   

Battery Optimization

1. Go to Settings, click on Battery

   

2. Click on Battery optimisation

   

3. Click on app, which you want to run in background

   

4. Click on Do not optimize

   

5. Click on back button two times, click on Energy Saver

   

6. Click on app

   

7. Now off the check box-
   Freeze when in Backgound
   Automatically Optimise when an Abnormally is Detected