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iPhone 3G overheating?

I'm not sure if the overheating issue is related to the 2.2 update or my new power adapter replacement but my phone has started to overheat on (3) numerous occasions recently. (I've had the original 2G phone and the 3G since launch so I've experienced my fair share of warm iPhones but these past few auto "shutdowns" is making me very uneasy.)

On all 3 occasions, the iPhone got very warm (almost borderline hot). Then, it would automatically turn off (with a black screen as if it went to sleep). A hard-reset (Wake+Home button extended hold) would be the only way to bring it back to normal use or else the phone would not be able to hold a charge. 2 of the 3 shutdowns occurred when my phone was being recharged with the replacement power adapter. In all three situations, I was on the phone talking to someone and my battery life was at 20% red.

What didn't make any sense during these occurrences was that I couldn't charge my phone afterward. The phone would get really hot (during use) and the recharge but my battery life would remain at 10% red even after 20 minutes. When it first happened, I figured it was a freak isolated incident but two more very similar shutdowns made me think otherwise.

Any help or similar experience would be great. At least on the bright side, mobile Safari isn't crashing after 2.2. 😀

Additional info:
No external case on the iPhone. Replacement power adapter worked fine before. 2.2 firmware.

BTW, why did apple make it so hard to find the discussion board?

Message was edited by: mad.nexx
Added additional information.

Custom, Windows Vista

Posted on Dec 8, 2008 10:40 PM

Reply
18 replies

Dec 9, 2008 7:33 AM in response to mad.nexx

As far as i know the problem is due to the phone working to run certain apps. For Example: "Tap defense" gets the phone to work really quick meaning that it would heat up. the shut downs could be occuring to the fact you dont turn your phone on and off and keep it on. This is caused by apps. Each time you download an application the phone needs to be restarted to ensure the phone communicates with the applications. Remember the iphone doesnt have a lot of talktime battery life.

Dec 9, 2008 12:15 PM in response to Brigster

Each time you download an application the phone needs to be restarted to ensure the phone communicates with the applications


I have NEVER had to do that.
I can download, and instantly run every application I have ever used.

You would be better served by holding home for 10 seconds to exit applications you suspect may not be exiting properly.

Dec 9, 2008 1:09 PM in response to lucamoo

No I haven't but why would I need to restore my iPhone without a backup? I have quite a list of contacts and I doubt its software related.

Regarding running applications: I was on the phone talking. No other programs were running (that I knew of) and I restart my phone once a week (old habit from the first iPhone days when the apps were crashing like it was the cool thing to do).

I have no intentions to over exaggerate my situation. I've stated before that I've owned both the 1st gen Edge iPhone and now the 3G iPhone so I have a good idea on what "warm" is. This is borderline HOT. My phone will not hold a charge without a restart (wake+home). If I didn't restart the phone, it would get extremely warm during the recharging process. I've used both the adapter and the USB cable while connected to my computer but to no avail.

The problem is that it's intermittence. I can't replicate the overheating/auto-shutdown readily so when I took my phone to the genius bar at my local Apple store, they said it was "normal" to get warm. Apparently they didn't believe me.

Message was edited by: mad.nexx

Dec 10, 2008 12:18 PM in response to Irish2DaBone

Do not charge your iPhone while in any case


I don't think you should make such a blanket statement.

I don't know of anyone who removes the case to charge their phone. If this was necessary why would Apple approve any case with a charge connector opening?

Nor has my phone ever felt hot while charging. The most I've ever noticed
was a slightly warm, but not any warmer than when in my pocket = 98.6F.

Feb 25, 2009 8:09 AM in response to mad.nexx

this is definately an issue. Within the last week, my iPhone 3g (2.2.1 firmware) has begun to rapidly drain the battery with no activity. I have settings optimized for my use and can rely on over 75% battery after a day of light use. Now i can pull it out of the charger and within 3 hrs it will be at less than 50% battery, and constantly warm to the touch, sometimes downright hot.

Apple support said the phone should not run any hotter than 95%, and if it even got close it would be cause for concern. I used a heat scanner on my phone after 2 hrs of it just laying on my desk and the temp was 101.7 degrees F.

I have a genius bar appt today for replacement. We shall see.

Feb 27, 2009 8:46 AM in response to Irish2DaBone

Irish51 wrote:
Not saying this is the reason, but I haven't seen it mentioned in your query or in the responses if you are attempting to charge your iPhone in some form of "case" or not, but if you are... that is the culprit!! Do not charge your iPhone while in any case


The iPhone case is not the cause of overheating. I've charged my iPhone in the case ever since July. If the case were to overheat the iPhone at any given time posing a safety hazard, Apple would have issued a replacement to all whom say it.

The iPhone heats up when using a lot of processor power, much like a laptop on your lap cooks your legs when playing stellar graphic games. The iPhone heats up in your hands for the factors of using the Internet alot and using it to watch movies and playing games.

Put the phone down, airplane mode it, and it'll cool off in a few.

Mar 2, 2009 7:31 AM in response to f2yang

well, I brought mine into the Apple store, they hooked it up to a diagnostic machine, didn't see anything but gave me a new one anyways. just like that.

new one responds much faster than my old one, which says to me that my old one did indeed have some/many processes constantly running in the background, bogging it down and killing the battery.

hoping this new one stays fast and shiny...

iPhone 3G overheating?

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