Hard Reset HTC S630 (HTC Cavalier)
- Press Power button, handset must be switched off.
- Now hold both Softkeys + Power button for around 2 seconds then release Power button.
- Then whole process must be confirmed by tapping "0" key.
- Success! after restart you can work on device.
Help! This doesn't work
Hard Reset will erase all of your data
All described operations you are doing at your own risk.