Hard Reset O2 XDA Graphite
- Press Power button, until your phone is on.
- Navigate to Menu -> Security Settings -> Reset Factory Default.
- Accept operation -> select OK.
- Now enter your password.
* The default password is: 1234.
- Then choose preffered option: Restore Default Settings, or Delete All User Data.
- Follow the instructions.
Help! This doesn't work
Hard Reset will erase all of your data
All described operations you are doing at your own risk.