Clear App Cache/Data:

NOTE: If an app causes problems or takes up too much storage inexplicably, you can try fixing the problems by clearing the app’s cache or data. WARNING! When you clear an app’s data, all of your data stored within the app will be deleted, including personalized settings, login information, user profiles etc. To avoid losing personal app data, clear ONLY the app cache.

  1. Swipe up from the bottom of the home screen
  2. Launch “Settings”
  3. Go to “Apps & Notifications”
  4. If necessary, switch to “See all apps”
  5. Select the desired app and tap “Storage”
  6. Tap “Clear cache”
  7. If clearing the cache didn’t help, tap “Clear data” (check the WARNING above)

Reset Network and App Settings, Factory Reset the Device:

NOTE: Before factory resetting the phone, make sure you’ve backed up all of your data.

  1. Open “Settings”
  2. Go to “System” and tap “Reset options”
  3. To reset network settings, tap “Reset Wi-fi Mobile & Bluetooth”
  4. Tap “Reset” two times
  5. To reset apps settings, go to “Reset app preferences” then tap “Reset apps”
  6. To factory reset the phone, tap “Erase all data (Factory Reset)” > “Reset phone” > “Erase Everything”

Reboot to Safe Mode and Remove Apps:

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

  1. Press and hold “power”
  2. Tap and hold “Power off” in the power management pop-up
  3. After the phone finishes rebooting, a “Safe Mode” watermark should be visible in the lower area of the home screen
  4. Open “Settings” and go to “Apps & Notifications”
  5. Switch to “All apps” if necessary
  6. Select the desired app
  7. Tap “Uninstall” > “OK”
  8. To exit Safe Mode, reboot the device normally



See More: ZTE Nubia Z18 Mini: Clear App Cache/Data, Factory Reset the Phone, Reboot to Safe Mode