im using HTC HD2, when i lock the screen and turn it back on. i cannot unlock it, i think the screen freezes. but after i lock the screen back and turn it on back, the unlock it.
and now i cant unlock the screen -.-
i sent my phone just now to the shop, and the technition said that there is problem with the system. but he charged so expensive. so anyone can help me out here?
1. the power off and reboot doesn't work.
2. sometimes lagg.
3. sometimes theres no effect on touching, like nothing happen. especially during unlocking the screen.
4. the phone restarts when calling