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.
LG E900 Optimus 7 hard reset full reset
Press and hold both Volume UP + Volume DOWN + Camera + POWER ON LG E900
WARNING: All of your data will be lost!
1. Factory Reset. Go to tap Applications list > Settings > about > reset your phone.
2. Try to update latest SW version via Web.Your phone are alerted to Windows Phone Updates automatically by the Windows Phone Update service, and the updates are installed on the phone by using the Zune software running on your personal computer, when you connect your phone with it.