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Оригинальный сообщение: martin ,


Very good diagnosing! It seems that if you have replaced the battery several times and restored the firmware with still no luck, the issue probably lies with either the Dock Connector or the Logic Board (like you said).

Your next move (cheapest) would be to replace the dock connector, purchase part [product|IF142-006|here].

If this does no work then you will have narrowed down the fault to the logic board. If this is the case then you will need to purchase a new iPhone as new logic boards are next to impossible to come by when sold separately. You can search for a 2nd hand logic board on eBay, however if you do this then make sure you have visual proof from the seller that it is completely functional.

Personally i would throw out the entire phone and upgrade to the 4S :P If you buy the iPhone on a 12/24 month plan, you can get the phone fairly cheaply without outright purchase.

Hope this helps!