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.
Vodafone 845 hard reset
Turn off your phone. Press and hold Volume UP + Call + Power ON your 845. Use middle optical touchpad in the recovery menu to select items.
or
Press the
MENU key, then Touch
Settings, Scroll to and touch
Privacy, Touch
Factory data resetTouch
Reset phoneTouch
Erase everything.