iPhone 5 getting very hot while using 3G

theBostonian · Dec 7, 2012, 01:14 PM

I purchased an unlocked iPhone 5 in the UK and brought it with me to Greece. The first company I got a pay as you go nano-sim from didn't offer much internet so I never had it turned on and my phone would stay cool, while lasting 2 days with 8 hours of use on a full charge.

Today, I acquired a new provider with better internet in my area. They didn't give me a nano-sim but instead cut a normal sim down to size. I noticed the silicon was a little scratched at the edge.

When I used 3G, even in the city centre, the phone heats up a lot and the battery percentage drains very rapidly which kind of sucks.

Is this normal for all iPhone 5s or is there something amiss (ie either not a strong signal or perhaps the damaged sim)?

Would be nice to hear other's views!

takeshi74 · Dec 7, 2012, 01:20 PM

Impossible to answer questions like this. Use of resources like processor requires battery and produces heat as a byproduct. It could be normal. It could be abnormal. Without knowing specifically what you were doing there's no telling.

theBostonian · Dec 7, 2012, 01:48 PM

Well, I thought it was implied in my post that I was doing nothing different other than using 3G internet to browse. I was using the Facebook app and the iOS browser.

Did I really need to specify that? I mean, it's not as if I had suddenly engaged in heavy rendering on my phone immediately after acquiring 3G... That's "literally" the only difference; without 3g internet enabled > phone cold/battery last long time. With 3g internet enabled > phone hot/battery no last long time.

There are no other variables.

Dec 7, 2012, 01:14 PM	#1
theBostonian macrumors regular Join Date: Apr 2012	iPhone 5 getting very hot while using 3G I purchased an unlocked iPhone 5 in the UK and brought it with me to Greece. The first company I got a pay as you go nano-sim from didn't offer much internet so I never had it turned on and my phone would stay cool, while lasting 2 days with 8 hours of use on a full charge. Today, I acquired a new provider with better internet in my area. They didn't give me a nano-sim but instead cut a normal sim down to size. I noticed the silicon was a little scratched at the edge. When I used 3G, even in the city centre, the phone heats up a lot and the battery percentage drains very rapidly which kind of sucks. Is this normal for all iPhone 5s or is there something amiss (ie either not a strong signal or perhaps the damaged sim)? Would be nice to hear other's views!
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Dec 7, 2012, 01:20 PM	#2
takeshi74 macrumors 68040 Join Date: Feb 2011	Impossible to answer questions like this. Use of resources like processor requires battery and produces heat as a byproduct. It could be normal. It could be abnormal. Without knowing specifically what you were doing there's no telling.
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Dec 7, 2012, 01:48 PM	#3
theBostonian Thread Starter macrumors regular Join Date: Apr 2012	Well, I thought it was implied in my post that I was doing nothing different other than using 3G internet to browse. I was using the Facebook app and the iOS browser. Did I really need to specify that? I mean, it's not as if I had suddenly engaged in heavy rendering on my phone immediately after acquiring 3G... That's "literally" the only difference; without 3g internet enabled > phone cold/battery last long time. With 3g internet enabled > phone hot/battery no last long time. There are no other variables.
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