Hard Reset HP iPAQ 510
- Power off your phone.
- Now hold and press Center of the 4-Way Navigation key + End key.
- Then you will see in the screen asks whether you want to perform a hard reset or not.
- You should confirm that -> "Yes" option.
- After that your phone will reset and reboots with factory settings.
Help! This doesn't work
Hard Reset will erase all of your data
All described operations you are doing at your own risk.