Hard Reset HTC A717X (HTC Dream)

1. The device must be switched off. 
2. Press and hold the Home button and the Power button at the same time. 
3. Keep holding buttons untill black screen with warning sign will appear.
4. Open keyboard
5. Then tap ALT + L.
6. Press Alt + W for 'wipe data/factory reset'.
7. Press the Home + Back key.
8. Device will restart and after that u can use it.

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