Clear App Cache:

NOTE: If your phone is running low on storage / apps are not working properly, or otherwise you experience issues with your device, you might be able to fix some of these problems by clearing the app cache partition and data.

WARNING! Clearing an app’s data can solve a lot of problems with the app, but by doing so you will also lose all the personal information stored within the app, including profiles, high scores, credit card information and so on. NOTE: It’s highly advised to first try and fix the issues by clearing the app cache. Doing so you can avoid losing your personal information.

  1. Press “Menu” on the home screen
  2. Go to the phone’s “Settings” menu
  3. Access the “More” tab and tap “Application manager”
  4. Swipe to the “Downloaded” or “All” screen and select the desired application
  5. Tap “Clear cache”
  6. If clearing the cache did not help, tap “Clear data” > “OK” to confirm

Clearing the Phone’s Cache Partition:

NOTE: In case your phone doesn’t work as it should and you’re considering master resetting it, you may want to try and fix these problems by clearing the phone’s cache partition first. This can have the same benefits as a factory reset, without actually losing all personal data.

  1. Turn off your smartphone
  2. Press and hold the “Home”, “Power” and “Volume Up” buttons simultaneously
  3. After the phone vibrates, release the “Power” key but keep pressing the other two
  4. At the “Android System Recovery” screen, release all hardware buttons
  5. From the recovery menu press “Volume Down” to navigate to and highlight “Wipe cache partition”
  6. Press “Power” to select the highlighted option
  7. Once the phone wipes the cache, highlight “Reboot system now” and press “Power”
  8. Wait for the phone to finish rebooting and the cache partition should be clear

NOTE: If wiping the cache did not help solving your phone’s problems, you may want to try master resetting it. Visit this thread for a full guide on how to master reset the Samsung Galaxy Grand Neo Plus.

Reboot in Safe Mode (and Remove an App):

NOTE: If one (or more) of your third party applications causes issues on your phone and prevents you from uninstalling, you should be able to easily dispose of it by first rebooting your phone in Safe Mode. In this mode all third party apps are disabled, so whatever process was preventing you from removing the app should no longer run. To enable safe mode:

  1. Turn off the smartphone
  2. Press and hold the “Power” button
  3. At the “Samsung” splash screen, release the “Power” key and immediately press and hold “Volume down” instead
  4. Keep pressing “Volume down" until the phone finishes restarting. At this point a “safe mode” label should be shown in the lower-left corner of the screen
  5. To uninstall an app, press “Menu” on the home screen
  6. Go to “Settings” and tap “More”
  7. Tap “Application manager” and swipe to the “Downloaded” screen
  8. Tap the app you wish to remove
  9. Tap “Uninstall” > “OK”
  10. To exit safe mode, press and hold “Power” then tap “Restart”

See More: Samsung Galaxy Grand Neo Plus: Clear App / Partition Cache; Reboot in Safe Mode