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iPhone 15: users of Pro and Pro Max models complain of overheating issues

theguardian.com

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Re: iPhone 15: users of Pro and Pro Max models complain of overheating issues

#12
post #10

I have a 15 pro here for testing, it was fine yesterday, or maybe I just didn't notice it because i wasn't handling it so much, but today, it is very warm (After being idle for 30 mins, not plugged in or anything). Also, the framerate on our AR app is worse, XCode debugging navigator isn't telling me the fps, but compared to a 12 pro, it is noticeably jittery

Are you using the Instagram app? It is documented that a bug in the app in combination with iOS 17 causes phones to massively heat up while doing basically nothing. https://www.youtube.com/watch?v=P6X2ZIkYFsQ

Instagram's app is buggy, yes. It visibly increases battery consumption sometimes even if it's at the background. I keep it killed because of it.

(iPhone X, iOS 16.7)

Re: iPhone 15: users of Pro and Pro Max models complain of overheating issues

#13
post #7

Earlier quoted context omitted.

> Warm, rather unpleasantly (but not concerningly) - sure, but hot - never. If only we had a standardized scale to measure and express warm vs. cold…

The problem is that the temperature you feel on your hand is not necessarily the temperature the chip is operating under. If your hand is warm that, ironically, means the heat is dissipating effectively. If it's not dissipating, then your hand will remain cool because all the heat is still on the chip. So unless Apple gives you a way to read the chip's own temperature sensor data, what you feel holding it isn't that…

To echo the parent commenter:

If only things at a non-zero thermodynamic temperature gave off some sort of invisible wave that could be detected at a distance by some calibrated sensor that would give an absolute measure of the hotness of said things, without needing to worry about relative temperature differences...

Re: iPhone 15: users of Pro and Pro Max models complain of overheating issues

#14
post #7

Earlier quoted context omitted.

> Warm, rather unpleasantly (but not concerningly) - sure, but hot - never. If only we had a standardized scale to measure and express warm vs. cold…

The problem is that the temperature you feel on your hand is not necessarily the temperature the chip is operating under. If your hand is warm that, ironically, means the heat is dissipating effectively. If it's not dissipating, then your hand will remain cool because all the heat is still on the chip. So unless Apple gives you a way to read the chip's own temperature sensor data, what you feel holding it isn't that…

Normies care about the fact that it's uncomfortably warm to hold, not whether the CPU is hot or not.

Re: iPhone 15: users of Pro and Pro Max models complain of overheating issues

#16
post #3

GSMArena bought two iPhone 15 Pro Max from different retailers to test the overheating issue and they were unable to replicate it. > Lastly, we did read reports of overheating iPhones, some during fast charging. For this review, we used two iPhone 15 Pro Max units, obtained from different retailers, and neither of those became unbearably hot even after an hour of GPU stress testing. Warm, rather unpleasantly (but not…

> GSMArena bought two iPhone 15 Pro Max from different retailers to test the overheating issue and they were unable to replicate it.

Did anyone manage to "replicate" the explosion of a Galaxy Note 7 under controlled usage? Assuming no one did, what conclusion wiuld we draw from s failure to replicate on n=2?

Re: iPhone 15: users of Pro and Pro Max models complain of overheating issues

#18
post #10

I have a 15 pro here for testing, it was fine yesterday, or maybe I just didn't notice it because i wasn't handling it so much, but today, it is very warm (After being idle for 30 mins, not plugged in or anything). Also, the framerate on our AR app is worse, XCode debugging navigator isn't telling me the fps, but compared to a 12 pro, it is noticeably jittery

Are you using the Instagram app? It is documented that a bug in the app in combination with iOS 17 causes phones to massively heat up while doing basically nothing. https://www.youtube.com/watch?v=P6X2ZIkYFsQ

No, it's clean out the box (apart from our own apps, but as I'm running through XCode,, I know the app was killed), I ran the system update and that's it

Re: iPhone 15: users of Pro and Pro Max models complain of overheating issues

#19
post #3

GSMArena bought two iPhone 15 Pro Max from different retailers to test the overheating issue and they were unable to replicate it. > Lastly, we did read reports of overheating iPhones, some during fast charging. For this review, we used two iPhone 15 Pro Max units, obtained from different retailers, and neither of those became unbearably hot even after an hour of GPU stress testing. Warm, rather unpleasantly (but not…

> Warm, rather unpleasantly (but not concerningly) - sure, but hot - never. If only we had a standardized scale to measure and express warm vs. cold…

For the issue at hand the temperature of the phone, even on the outside, is not very relevant.

What matters are

- whether it feels uncomfortable to humans

- whether it is unsafe for humans

I think both are mostly about the amount of heat the device transfers to human skin per unit of area per second.

The temperature of the outside of the phone is _a_ factor in that, but not the only one. Thermal conductivity of the material (compared to metals, wood doesn’t feels hot in summer or cold in winter, for example) and grip strength needed to reliably hold an object play a role, too.

Re: iPhone 15: users of Pro and Pro Max models complain of overheating issues

#20
I wonder how much of this is just caused by the higher workloads people put on their new phones just after purchase: restoring from backup, installing/trying new apps, testing out that new GPU, Photos doing a new classification pass on the existing library, and just a generally higher than average workload for the first few weeks of ownership.

It seems like there are always a flurry of reports of issues like this on launch week, which then pretty much disappear a few weeks later.

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