Help Garminfone reboots repeatedly

[danzung]

My garminfone reboots when screen is touched (wake). Again comes back to the lock sign. When I touch it, it reboots and this goes on I am unable to use the phone

 

[Medicine Man]

Have you tried a Hard Reset? Here's how you do it:

Turn the power off. If your Garmin-Asus Garminfone is frozen, pull the battery out and reinsert it.

1. Hold the Left D-pad button.
2. Press and hold the Power button until the device turns on.
3. Follow the on-screen instructions to restore the phone.

(from KnowYourCell.com)