Clear App Cache / Data:

NOTE: If one of your applications doesn’t work as intended or takes up too much space for no apparent reason, you might be able to fix these issues by clearing the app’s cache or data.

WARNING! When you clear an app’s data, all personal information stored within the app will be lost (such as login and credit card information, profiles, high scores, saved games etc.). As such you should first try fixing these issues by clearing the app’s cache to avoid losing personal data.

  1. Tap “Apps” on the home screen
  2. Open “Settings
  3. Scroll to “Applications” and tap “Application manager
  4. Go to the “All” or “Downloaded” section
  5. Select the desired application
  6. Tap “Clear cache
  7. If clearing the cache didn’t help, you can tap “Clear data” > “OK

Wipe Cache Partition:

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

  1. Turn off the phone
  2. Press and hold “Power”, “Volume Up”, and “Home” at the same time
  3. When the “Samsung” logo appears, release “Power
  4. At the “Android” logo, release all hardware buttons and after a moment you should see the “Android system recovery” menu
  5. From here, press “Volume down” repeatedly to highlight “Wipe cache partition
  6. Press “Power” to select the highlighted option
  7. After the cache is cleared, “Reboot system now” should be highlighted
  8. Press “Power

NOTE: In case clearing the cache partition didn’t help solving the issue, you can try factory resetting the phone instead. Visit this thread for a full guide on how you can reset the Galaxy A5.

Reboot in Safe Mode:

NOTE: In case you have installed a third party application that causes problems and prevents you from removing it, you should be able to uninstall the app from within Safe Mode. In this mode all third party apps are disabled.

  1. Turn off the device
  2. Press and hold “Power
  3. At the “Samsung” logo, release “Power” and immediately press and hold “Volume Down” instead
  4. After the phone restarts, release the volume key. “Safe Mode” should be displayed in the lower area of the screen
  5. To remove an application, first go to “Settings
  6. Tap “Applications” under “Device
  7. Tap “Application manager
  8. Swipe to “Downloaded” and select the desired app
  9. Tap “Uninstall” twice
  10. Once done, you can exit safe mode by pressing & holding “Power” and restarting your phone as you normally would

See More: Samsung Galaxy A5: Clear App Cache / Data; Wipe Cache Partition; Reboot in Safe Mode