2. Touch & hold Power off. Then touch OK to restart in safe mode.
When it restarts, you'll see Safe mode across the bottom of the home screen, and all widgets and third-
party apps will be disabled.
3. Use your phone and see if the problem has gone away. Remember, you won’t be able to use any 
downloaded apps.
If the problem goes away:
1. To exit safe mode, restart your phone.
2. One by one, uninstall recently downloaded apps. After each removal, restart your phone. See whether 
removing that app solved the problem.
3. Once you delete the problematic app, you can restore the other apps you removed during testing.
If the problem doesn't go away: Try these troubleshooting steps for phone performance issues.
Exit safe mode
Press & hold the Power + Volume up buttons simultaneously, then touch Restart  .
Or, hold the Power button for about 30 seconds, or until your phone restarts.
Clear app's cache or data
Clearing the cache and data can free up phone memory, improve performance, and fix some problems with 
apps and web pages.
1.
Touch & hold the app icon, then touch  .
2. Do one of the following:
•
To free up space by removing temporary files, touch Storage & cache > Clear cache. Over time, the 
cache builds up again, so repeat if a problem occurs.
•
If problems still occur, then delete all data saved in the app by touching Storage & cache > Clear 
storage. Be careful - there’s no way to undo this.
If problems still occur, then reset all app preferences.
Force stop apps
Force stop an app only if it seems to be causing a problem. To completely shut down an app, including any 
background services:
1.
Touch & hold the app icon, then touch  .
2. Touch Force stop.
Delete apps you installed
You can delete (uninstall) apps that you downloaded. For many preloaded apps, you can disable but not 
delete them.
1. Touch & hold the app's icon.
Use apps : Get, delete, manage apps
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