Clear App Cache or Data:

NOTE: if one of your apps doesn’t work as intended, you can try fixing these issues by clearing the app cache or data. WARNING: when you clear an app’s data, all of your personal data stored with the app will be deleted, including login information, personalized settings, save files etc. To avoid losing personal app data, clear ONLY the app cache.

  1. Swipe up on the home screen
  2. Open “Settings”
  3. Go to “Apps & Notifications”
  4. Tap “See all apps”
  5. Select the desired app”
  6. Tap “Storage” > “Clear cache”
  7. If clearing the app cache didn’t help, you can tap “Clear data”. Check the WARNING above

Wipe the Phone’s Cache Partition:

NOTE: If your phone freezes, crashes, and otherwise doesn’t work as intended, you can try fixing these issues by clearing the phone’s cache partition. To do this:

  1. Turn the phone Off
  2. Press and hold “Power” and “Volume down” at the same time
  3. At the OnePlus logo, release “Power”
  4. At the Password screen, release the volume key as well
  5. Enter your PIN/password and tap “OK”
  6. Select “English” and tap “wipe data and cache”
  7. Tap “Wipe cache” > “Yes”
  8. To complete the process you will need to “Reboot” the phone

Reboot to Safe Mode and Uninstall an App:

NOTE: If a third-party app causes issues and prevents you from removing it, you should be able to uninstall the app from Safe Mode where third-party apps are disabled by default. To do this:

  1. On the home screen, press and hold the “Power” key
  2. At the prompt, tap and hold the “Power off” option
  3. When prompted to reboot to Safe Mode tap “OK”
  4. Wait for the phone to reboot. Once done, it should show a “Safe Mode” watermark on the home screen
  5. To remove an app, swipe up on the home screen and open “Settings”
  6. Then go to “Apps & Notifications” and ensure you have “See all apps” selected
  7. Select the desired application
  8. Tap “Uninstall” > “OK” to confirm
  9. To exit Safe Mode, simply press and hold “Power” and tap “Restart”

See More: OnePlus 6T: Clear App Data/Cache; Wipe the Cache Partition; Boot to Safe Mode and Remove Apps