"iPhone needs to cool down before you can use it" error message???

The device got too hot. You need to leave it alone for a few hours.

This usually happens when iPhone (lol at using it as a proper noun) is left in direct sunlight. If you must leave it on a table outside, throw a napkin or rag over it or something.

Then let it cool down.... If it becomes a persistent problem, call Apple...

Obviously something happened to cause it to overheat

Just curious (I've never received this error message) How hot temperature wise does it have to get?

This happened to my girlfriend's iPhone when she left it out in the sun by the pool on a 110 degree Arizona summer day.

Shocking

This happened to me once when the iPhone was sitting right next to me at home. It was doing nothing and was not hot. I rebooted the phone and it was fine and I have never seen that warning since.

Put it in the freezer, problem solved =D

I too got the red triangle when I was at the beach...so I put it in my bag in the shade and it was fine after a little while. I always take my iPhone to the beach with me, and it only ever happened that one time.

This happens randomly and is yet another flaw with the iphone4. I believe you that your phone was not actually overheating. I have seen this on many friends ip4's that were perfectly cool, so I know this is a real issue.

Yes, try a reboot.

There have been a number of posts on various forums since the iPhone 4 came out, where someone saw the temperature warning once, rebooted, and never saw it again.

For whatever reason, Apple seems to still not have figured out a proper initialization sequence after all these years.

That happened to me today @ one of Chicago beaches,
listening to radio thru iphone and it just stopped with the same warning.....

I have never seen this error message on my iPhone, but if I did I would leave it alone for a bit.

I think that message means the iPhone needs to cool down before you can use it

I hate how even the most obvious message "Turn off your computer" get's people going "WHAT DOES TURN OFF MY COMPUTER MEAN"

Your phone got hot, for WHATEVER reason. Unless this happens over and over then it's not an issue and the phone got hot..

You turned off the phone, WAIT A WHILE. If after a few hours (6-12 at MAX) it doesn't turn on, maybe it needs to be charged? Try that..

Jeeze this stuff is so simple and even simple things people can't seem to understand..

Just go this after receiving a text message. Phone was cold. It's freezing here (it's Winter) OS 4.1, iPhone 4

Very odd.

Seen it before once with a 3GS left in a car on a hot summer day. That was hot to the touch. It operates normally up to a very hot temperature before the message.

This time there was no heat involved. Very strange. Hope its not a bug in 4.1

Your iPhone WOULD cool down, but it's far too busy - being delicious.

This has happened to me twice when I left it in the car. Put it in the fridge.

The same thing happened to me when my phone was receiving a call. I wasn't able to take the call and I had to reboot my phone to use it again. The phone was locked and sitting on a table in an air conditioned room and was cool to the touch. So far, it's only happened once and I'm keeping my fingers crossed that it doesn't happen again since the phone is perfect otherwise.

paulie6978 said:

my phone was sitting on the table in an air conditioned room.. i wasnt even using it

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Was the sun shining on it?

Cheesebach said:

The same thing happened to me when my phone was receiving a call. I wasn't able to take the call and I had to reboot my phone to use it again. The phone was locked and sitting on a table in an air conditioned room and was cool to the touch. So far, it's only happened once and I'm keeping my fingers crossed that it doesn't happen again since the phone is perfect otherwise.

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It just happens for no reason at all. It's a bug. I just rebooted mine when this happened and it hasn't happened since.

Are you sure it's not just a joke? There are a few stupid iphone apps that display random messages, appear to crack the screen, or give you a black screen. Maybe someone played a trick on you.