Revamped version of the iPhone 3G with faster processing speeds. Repair of this device is similar to the 3G, and requires simple screwdrivers and prying tools. Model A1303 / 16 or 32 GB capacity / black or white plastic back.

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Why restarts my iPhone 3GS when it´s fully charged.

JB iPhone 3GS, 4.3.2 , ultrasnow , iPad2 band. When the phone is fully charged it´s restart often. If I unplug the phone then it not restarts. The phone case is also a little bit warm (not extreme hot).

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Hi again, well I changed the battery and I think it help. The phone has not restarted for several days now.

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great news..glad it could be fixed.

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Lasse, congratulation on getting your phone fixed. now all you have left to do is to accept pollytintop's answer since it is the one that helped you getting your device repaired. This way we know that your case is resolved, and we know for the future what worked. Again, great job.

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Thanks "pollytintop" for your advice to change the battery I think it helped.

Regards Lasse

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no problem, just glad all is good with your phone. well done in fixing it!

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Chosen Solution

Lars,

Try taking a flashlight and pointing it towards the bottom of the dock connector. Underneath you should see a small hole with either a white or a red little swatch. If you don't see anything right away try carefully removing any debris or holding the phone at an angle. Next check the inside of the headphone jack on the top of the phone opposite the sleep/wake button. Again, you're looking for a white or red swatch of what looks like glossy paper on the very bottom of the phone. If you see red, your phone may have come in contact with some liquid and you may need to replace some parts. In my experience, this is most common indicator of the symptom you're describing.

Best,

Kevin

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Hi Kevin,

Thanks for the answer I couldn’t see the swatch but I open the phone and look inside and I think it´s looks good. If it has been contact with some liquid I think it should look worse than this like corrosion and so on. Do you have any idea which parts that could give this behavior?

Regards Lasse

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i think the 'SWATCH" is actually inside the iphone on the motherboard. it is a small white circle with a black surround that changes colour with moisture to a salmon pink colour. there are 2.. one near connector 5/6 (headphone jack) and the other near the 'don't remove sticker' . people often talk about the locations and believe that if you look inside the jack or the dock you will magically see a pink dot..never found one yet!

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Most Helpful Answer

I think this is a software or battery issue.. I had this with a 3g on that jb..reversed the jb but problem still persisted, If this is the original from new battery then there is a chance that it is on it's way out. I'd try changing the battery to see if this helps.There is someone else asking this very question at the moment..why don't you keep an eye on their answers/feedback to see what happens?

iPhone always reboots after 3 min of use, NO IMEI, NO BLUETOOTH [...]

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Lasse will be eternally grateful.
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