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 replacement intermintent on, then permanently off

I just replaced the battery in my iphone 3g yesterday. I put everything back together and powered the phone on successfully and charged it all the way. I made phone calls played games the works, no problems. Then today I went for a motorcycle ride with my phone in the jacket. It was cold out but not wet. The phone would turn itself off at random. Now tonight I was listening to some music on the ride home and the phone shut off for good this time. I tried taking it apart and placing th old battery back in but its a no go. Nothing happens. I tried powering it on with just the sleep/wake button and holding that plus the home button for over a minute. Nothing. Please help guys.

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Anything happen when on wall charge?

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Nothing happens when plugged into a wall outlet or usb to the computer

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option 1.battery/batteries completely dead (not likely that both would die beyond even a slight charge) measure the voltage? should be in the region of 3.7mAh. check the connection to the batteries is secure (under/near don''t remove sticker)

option 2. charger/usb cord is not working properly

option 3. dock connector problem-battery ran down and now you can't charge-look at connector 4, clean port etc, think about replacing

option 4. power processor....

option 5. bit out but check connector ?5 headphone jack which is also power button.

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