8910 automatic off

[digidot]

hi this is pammmi from india.

i have one 8910 which is getting off after every 43 seconds and than i have to turn it on and again it gets off ,

i have tried flashing it with new version but still the same problem

i have removed the backup battery from the phone the small bat inside the phone i mean but the same 43 second off problem is there now can any one help me out please