Second generation of iPhone. Model A1241 / 8 or 16 GB capacity / black or white plastic back. Repair is more straightforward than the first iPhone. requires screwdrivers, prying, and suction tools.

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Battery won't charge yet Sync works and icon shows connected to power


I have been repairing an iphone 3G that was damaged and given to me. I replaced the power flex cable as the old one was broken. I also replaced the back casing and battery, as well as a cracked screen.

My problem is that now the phone will not charge. Initially I had placed the 3Gs battery in the phone with the 4.51 watt hours. I beleived this was the problem so I have since replaced the old batter. Same problem. Iphone syncs with PC no problem and battery was powering phone until it went flat. Also the battery icon changes to the lightning bolt when connected, but like I said it does not charge.

Appreciate any suggestions.

Perhaps I have damaged the mainboard with the 3Gs battery, yet I'm presuming it is all connected correctly as sync works and battery was powering phone.


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1 Answer

Chosen Solution

Jason, check the fuse shown in the image. Test it for continuity.

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Think I need a magnifying glass, how will I tell if it is broken? test for continuity, and how if broken can I fix it?


have you ever changed the dock connector in all this repair?? might be worth a clean or a look. Also check the very small fuses/inductors on the area near the "do not remove" sticker .


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Jason will be eternally grateful.
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