Clear App Data/Cache:

NOTE: If an app on your phone doesn’t work as intended or takes up too much storage inexplicably, you can try fixing the issues by clearing the app’s cache or data. WARNING! When you clear an app’s data, all of your personal data stored within the app will be deleted, including login details, user profiles, custom settings etc. To avoid losing personal app data, clear ONLY the app cache.

  1. Open “Settings
  2. Go to “Apps & Notifications
  3. Switch to “All apps” and select the desired app
  4. Access “Storage” and tap “Clear cache
  5. If clearing the app cache didn’t fix the issues, tap “Clear data” (Check the WARNING above)

Reset Network and App Settings, Factory Reset the Device:

NOTE: Make sure you’ve backed up all of your personal data before factory resetting the phone, otherwise you will lose it during the reset process.

  1. Open “Settings
  2. Access “System
  3. Tap “Reset options
  4. To reset network settings, access “Reset Wi-Fi Mobile & Bluetooth” and tap “Reset” twice
  5. To reset app settings, tap “Reset app preferences” > “Reset apps
  6. To factory reset the device, tap “Erase all data (Factory Reset)” > “Reset phone” > “Erase Everything

Remove Apps in Safe Mode:

NOTE: If a third-party application causes problems and prevents you from removing it, you should be able to uninstall the app from Safe Mode where all of the third-party apps are disabled by default. To boot in Safe Mode:

  1. Press and hold “Power” on the home screen
  2. Tap and hold “Power off” in the power management pop-up
  3. Wait for the phone to finish rebooting and once done, you should see a “Safe Mode” watermark in the lower area of the home screen
  4. To remove an app, first open “Settings” and then go to “Apps & Notifications
  5. Switch to “All apps” and select the desired app
  6. Tap “Uninstall” > “OK
  7. To exit Safe Mode, reboot the device normally

See More: Blackview BV5500: Clear App Cache/Data; Factory Reset the Phone; Boot to Safe Mode