Clear App Cache/Data:

NOTE: If an app causes issues 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 data stored within the app will be deleted, like saves, custom settings, user profiles, login data etc. To avoid losing personal app data, clear ONLY the app’s cache.

  1. Swipe up from the bottom of the home screen
  2. Launch “Settings” > “Apps & Notifications
  3. Switch to “All apps” if needed
  4. Select the desired app and tap “Storage” > “Clear cache
  5. If clearing the app cache didn’t fix the issues, tap “Clear data

Reset Network and App Settings, Factory Reset:

NOTE: Before you factory reset the device, ensure you back up all of your data.

  1. Launch “Settings” > “System
  2. Tap “reset options
  3. To reset network settings, go to “Reset Wi-Fi Mobile & Bluetooth
  4. Tap “Reset” twice to confirm
  5. To reset app settings, tap “Reset app preferences” > “Reset apps
  6. To factory reset the phone, tap “Erase all data (Factory reset)” > “Reset phone” > “Erase everything

Reboot to Safe Mode and Remove an App:

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 of the third-party apps are disabled by default.

  1. Press and hold “Power
  2. From the power management pop-up, tap and hold “Power off
  3. Wait for the device to finish rebooting. Once done, you should see a “Safe Mode” watermark on the lower area of the home screen
  4. Open “Settings” and access “Apps & Notifications
  5. If necessary, switch to “All apps
  6. Select the desired app and tap “Uninstall” > “OK
  7. To exit Safe Mode, reboot the device normally

See More: Karbonn K9 Smart Plus: Clear App Cache/Data, Factory Reset, Remove Apps in Safe Mode