A factory data reset may help with a blank or frozen screen, apps crashing or freezing, keypad/touchscreen problems, can't hear, device making noises, can't make or receive calls, and device won't sync.
Perform a factory data reset only if absolutely necessary as it removes all settings and data including:
-
Contacts
-
Email accounts
-
System and app data
-
App settings
-
Downloaded apps
-
Media (It is recommended to backup this data)
Alternatively, music, pictures and videos can be backed up to a computer.
Notes:
-
From a Home screen, tap Apps
.
-
From the Apps tab, tap Settings.
-
Tap Backup & reset.
-
Tap Factory data reset.
-
Tap Reset phone.
If presented, enter the current passcode or draw the unlock pattern.
-
Tap Delete all.
Allow several minutes for the factory data reset and reboot processes to complete.
If applicable, set up your device.
Related Topic:
Factory Data Reset