HTC My Tocuh 4G freeze on logo only solved.

1. Turn the MyTouch 4G off. If it’s frozen and not responding to commands, you may want to pull the battery from the device to force it off.

2. Press and hold the Volume Down button.

3. Press and hold the Power button for 5 seconds then release. Continue to hold Volume Down.

4. When you see the Android logo appear, you may then release Volume Down.

5. Now use the Volume Up/Down buttons to highlight Factory reset.

6. Press the Power button to select.

The hard reset process will begin. It may take a few minutes to complete, then the MyTouch 4G will restart as normal.