Hard Reset HTC 8XT

1. Make sure, that your phone is off.
2. Then press and hold Volume Down + Power button.
   
3. Release only Power button, when HTC logo appears.
   
4. When exclamation mark appears, then release the Volume Down key and quickly press the following keys, in order: Volume Up, Volume Down, Power, and Volume Down.
5. After the HTC logo appears, the device will display two turning gears as it resets.
6. Now your phone will completely reset and restart.

WARNING !
Hard Reset will erase all of your data
All described operations you are doing at your own risk.