Good job on reviving not one but two old threads and without enough information for any helper to work with.

You have yet to provide:
- Any softwares you have downloaded and used.
- Any overclocking, if so to what extent was the modification.
- Any dual/multibooting (i.e. with nitdroid/meego)
- Hardware revision of your device.
- If the device was exposed to extreme environments (i.e. dropped into water, dropped onto floor several times, dirty/dusty environments whilst back cover is not on the device, constantly replacing/removing of SIM card).