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Fix issues : Maintenance procedures 354
Reset phone if you can't open Settings
If you can’t open Settings, do an external reset.
1.
Charge your battery 30% or more.
2.
Turn off the phone.
3.
Press & hold the Volume Down button and the Power button at the same time until the phone turns on.
4.
Press the Volume Down button until you see Recovery mode.
5.
Press the Power button to restart in Recovery mode.
6.
If you see an Android robot with an exclamation mark, press & hold the Power button and, while
holding it down, press & release the Volume up button.
7.
Use the Volume buttons to scroll to Wipe data/factory reset, then press the Power button to select it.
8.
Use Volume buttons to scroll to Factory data reset, then press the Power button to select it.
Allow several seconds for the reset to complete.
9.
Use Volume buttons to scroll to Reboot system now, then press the Power button to select it.
Allow several minutes for the reboot to complete. If the phone doesn't finish rebooting, press & hold
the Power button until the screen turns dark, then release it to power up normally.
10. If you reset your phone because you suspect a third-party app is causing problems, when you set up the
phone again, be sure you don't copy all apps. Restore one app at a time and use the phone for a while.
If the phone has no issues, install the next app and retest.