QUOTE(law_yew_wooi @ Jul 18 2010, 10:14 PM)
I didn't uninstall any apps but just some songs which is stored in sd card and have nothing to do with the phone memory. It's nice to hear that there is someone who face the same problem as me. Can I know how to do hard factory reset? I m willing to do this, despite all the contacts are gone cos I have no idea how to "revive" it...
yea, im facing the same problem as u did, accept, before that i was uninstalling apps due to low space of memory. then after i press the home screen, the sense kept force close. even after i turned off for a while and on it again. so there's no choice accept to reset it. after u reset it u can do back up to ur sd card on all ur newly stored contacts for precautions, as for apps u can just download it back from the market, it will tell u which apps u have before according to ur google acc. so not much of a problem.
Performing a factory reset using phone buttons
If you cannot turn on your phone or access the phone settings, you can still perform a factory reset by using the buttons on the phone.
1. With the phone turned off, press and hold the VOLUME DOWN button, and then briefly press the POWER button.
2. Wait for the screen with the three Android images to appear, and then release the VOLUME DOWN button..
3. Press VOLUME DOWN to select CLEAR STORAGE, and then press POWER.
4. Press VOLUME UP to start the factory reset.