iPhone 3GS shuts off and won't start untill connected to power
My iPhone 3gs shuts off randomly and won't start till connected to the charger.The battery % reflected is always healthy.
I have shown it to a known analyst (not to the apple store as it is jail broken).He first did a fresh installation of the custom OS 4.1 - no results.He then checked the motherboard and other hardware for fault - no results.
He is suggesting , battery replacement might help , but there isn't any guarantee.
Is this a good question?