I have a hero hd 2 which once turned on flashes instantly like the battery is flat then turns off.. It wont charge via the jack (sometimes the red light comes on for a min but quickly turns off) i purchased a new battery and charged it on a mates charger but the same thing happens.
Its over a year old now and I have no idea where it came from as it was a gift.. Anyone had one repaired? Or know anyone that can?