iPhone random switches off in calls.

[DrR]

My 3GS randomly just switches off, then takes ages to come back on usually about 7 mins into a call.

Any ideas? It's been doing it for ages, even before the last software update.

 

[Tom]

Its old. Probably fucked.

 

[DrR]

Yeah, it's well old and fucked, i've replaced the screen, mute button etc in it to.

 

[Rob]

Overheating at all??

Does it do it during heaving browsing?

 

[D4N13L]

I noticed my 3gs did this yesterday.

 

[DrR]

Nope only does it in calls, works perfect (once i get it to switch on) at everything else.

 

[MattW]

Yes, my old 3GS did this also after the iOS4 update. It was fine on iOS3, but once upgraded it did it a lot. I took it back to apple for an exchange, it was a very common problem.

I did read somewhere that it was believed to be an issue where by iOS4 was using a temperature sensor on the battery, that iOS3 didn't ever use. This was causing a false reading of over temp and then shutting down the phone. There was a mega long thread on apples own support forum, but the company would never officially admit the fault - at least they hadn't up to the point that I had mine swapped, and i kind of had less interest in it after that!!