Before you buy a new cell phone or new tablet, please try the following procedure to repair your device. First charge your battery, backup your important data if possible and in most cases take out SIM and SD card. It is impossible to recover your data after doing a hard reset, so online backup is always important. For all of your data, a backup should be done on an external device, hard drive, raid system or media. With or without insurance, if your cell phone lost, damaged or stolen at least your invaluable data is backed up in a safe place.
Resetting your Phone
Resetting your phone will remove all the data from the its memory which include contacts, tasks, calendar appointments, and more, and restore the phone back to the factory default settings.
To reset your phone
1. Click Start > Accessories > Clear Storage. 2. Follow the on-screen instructions to reset the phone. The phone will restart after it has been reset.
1. Turn off your phone or take out battery and reinsert it. 2. Press and hold both the soft keys, then press POWER ON for 1 sec 3. Release POWER ON button, but keep pressing both soft keys 4. When you see the hard reset message, release soft keys and press "0" to hard reset the phone