Fourth generation iPhone. Repair is straightforward, but the front glass and LCD must be replaced as a unit. GSM / 8, 16, or 32 GB capacity / Model A1332 / Black and White.

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Why my iPhone 4 is overheating while using it?

It shows an alert that the device need to bee cooled down. device is using battery charge very fast. can IOS reinstallment fix it?

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I would start with backing up the phone, then performing a full restore of the iOS. It could be corrupted software and this is, unfortunately, the least invasion step.

If the overheating continues with just the iOS, inspect the dock connector and headphone jack liquid immersion sensors - if they are red/pink, then moisture has gotten into the unit. Use a flashlight to aid visualizing the sensors. In my experience, it takes _a lot_ to set them off in the iPhone4 - I had a coworker drop her's in the toilet, she fished it our immediately and got it to me fast. The sensors were still white, inside and out, then phone continued to function just fine after I disassembled and dried it out.

If you can, don't restore your data from the backup yet - it is possible there is corruption in the data and leaving it off for a few hours can help with issue isolation. If the phone appears to be working properly with just iOS, then restore from backup (right-click on the iphone in the left column of iTunes for this option). If the issue returns with the data from your backup, restore iOS again but not your data backup.

If all else fails, and the liquid immersion detectors are white, it's time for a trip to the Genius Bar to get it swapped.

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Works for me

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Hi

I have the same problem overheating my Iphone 4s, I updated to 5.1 then I restore but still overheating

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iphone4s have a problem of heating while charging and talking during charging and playing games . if you gets heat up without using then do the steps told by david

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It overheats because people are getting it wet and that's the truth we need to be honest .

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Mine has never been wet; has always been in its Survivor case. But when running updates, first from 6.x to 7.0, then from 7.01 to 7.1, the phone crashes and then gets into a terrible loop. This last time, with the update to 7.1, it gets extremely hot and is now having se ere hardware issues just staying on.

But it's never been wet.

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My iPhone 4 also overheats then gets a blue screen or just restarts. I tested the overheating is the issue by placing on a ice-pack covered with cloth and it runs perfectly. take it off the ice-pack and it warms up then crashes. Freshly restored no additional apps, or apps running and it gets to hot and crashes. has never had any water damage as seen by internal white dots

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