Become a MacRumors Supporter for $50/year with no ads, ability to filter front page stories, and private forums.
Surely it's partly due to something wrong with iOS 17 given similar reports on other devices. In addition to possibly some getting bad chips.
 
There's something weird going on because MKBHD just put out his review and his experience on when it heats up has been strange: youtube.com/watch?v=cBpGq-vDr2Y&t=674s

He hinted at the chip then played it safe and said it could be software. He was in airplane mode listening to Spotify and scrolling Instagram (off-line?).


“You know who” says it’s not the chip but the failure of heat dissipation due to reduction of weight. On some phones it is fine but if a substandard chip heats up out of spec the designed heat dissipation will fail and the device heats up. Also, it heats up on phone calls and stuff that should not be a software issue.


What a mess…


But at least he was brave enough to own up that it did happen to him.
 
  • Like
Reactions: Mity
What amazes me is that a bunch of randos on forums think they know better than literally hundreds of engineers whose actual job it is to design phones and who have collectively been doing so since 2007. I mean, how likely is it really that a major issue with the thermal design of the most important product that Apple makes, the one mainly responsible for them being amongst the most valuable companies on the planet, got missed in testing especially if it’s really widespread and severe? Not very, in fact it’s vanishingly unlikely. Much more likely to be a batch of faulty parts that somehow got through QC or a software issue than a design problem.
Right?? They wouldn't let issues get out there before testing! For a totally hypothetical situation, like, no WAY Apple engineers would ever let a cell phone—that you hold in your HAND—have an issue where if you hold it the "wrong way" (you know, with your human HAND) it would block the PHONE signal. No WAY something crazy like that would happen!!
 
  • Like
Reactions: happyhippo1337
Went to the Apple store today, one of the base iPhone 15s (with A16) was very, very hot even though it was just sitting there. There must be some sort of software/firmware issue going on here, nothing to do with the Pro or the A17 Pro.
 
  • Wow
Reactions: Davidnguyen_89
Given the chip shortage and high demands, it would be very enticing for Apple to use dies in a lower bin.

That's complete conjecture. There's no evidence whatsoever that Apple has done this. Even random iPhone 15 base models with the A16, some of them are sitting in the Apple Store running very hot.

It's a software issue. Some people get so swept up in baseless nonsense, it frankly should be embarrassing.
 
My PM also ran warm for the first few days and now it’s back to normal. I think it was from downloading all my content from the cloud. It took about 3-4 days for all my pics and files etc to finish downloading. No problems since it finished.
 
Die binning is a very common practice in the industry. It happens everyday. Even Apple does this. The M series is binned. Apple binned the A5 and put it in other devices. I'm not saying they are doing it to the A17. It's obviously speculation. The A series is hard to do as there is only one iteration. Some A18s will likely be a binned A18 pro, if the rumors are to be believed.
It would be enticing for a multi trillion company to take this risk on their best selling product? Give me a break.
 
Last edited:
I'll wait until I receive my (and my wife's) 15 Pro Max in a few weeks before I freak out, but if this is really a thing it'll be extremely disappointing after waiting 6 years to upgrade and buying the most advanced and expensive phone Apple makes.

Hopefully something that can be fixed with a software update, but there will probably be compromises made.
 
Last edited:
Die binning is a very common practice in the industry. It happens everyday. Even Apple does this. The M series is binned.

Firstly, Apple clearly indicates when they bin chips to certain core counts.

Secondly, if you take the following into account:

- Running the iPhone 15 Pro at full tilt in benchmarks or gaming doesn't heat up the phone worse than previous models
- iPhones running different chips just sitting in the Apple stores are also randomly running very hot
- Reviewers like MKBHD have found that the phone can heat up aggressively when doing very little, whereas when they are using the phone heavily it stays cool

How could you possibly think Apple secretly binning the chips and using lower quality ones in some phones is the cause of this whole heatgate thing?
 
  • Like
Reactions: weezor
I am not making excuses for Apple but from the many posts I have seen over the launch weekend and this week, I can say some of the people making claims were most definitely lying and/ or blowing things way out of portion.

There may be some legit cases were some users got defective phones that are overheating, but I feel like there would be way more people flooding forums and apple stores returning phones if it was an massive wide spread issue of phones about to explode in peoples hands. It would be making national headlines and Apple would have made a statement by now.
 
It's embarrassing to assume Apple doesn't use binned dies. They absolutely do. Likely not the A17 as that would be scandalous on a single iteration chip. Maybe over engineered to allow for a broader spec. N3B is more complex than N3E which all other TSMC customers will use. The A12z was a bummer A12x. Lower bin spec so they disabled a GPU. Worth noting Apple has a deal with TSMC to not pay for dies not meeting spec until they reach certain yields.
Anyway, could be software. Early reports on 17.1 beta look promising for this issue. But I'm certainly not embarrassed to discuss even remote possibilities.

That's complete conjecture. There's no evidence whatsoever that Apple has done this. Even random iPhone 15 base models with the A16, some of them are sitting in the Apple Store running very hot.

It's a software issue. Some people get so swept up in baseless nonsense, it frankly should be embarrassing.
 
My 15PM definitely heats up a lot, but I can’t pinpoint what is causing it. I don’t social media apps, so it’s not that for me.
 
  • Like
Reactions: Mity
But there are reviews online saying the 15pm does get crazy hot running benchmarks and even throttling. While some others run fine. Sure, still could be software. There are tons of variables that could make it manifest. I picked my theory, everyone else has there's. Lol
- Running the iPhone 15 Pro at full tilt in benchmarks or gaming doesn't heat up the phone worse than previous models
 
As far as the claims of low binned chips I see a couple of problems (I won't claim it's not true but until Apple is forthcoming everything is just conjecture)... 1) if true they are inviting a class action lawsuit in the US in which they could very well lose, and 2) the EU/UK have far more comprehensive anti-lemon laws then the US and the EU would have a field day with Apple. I suspect if you lumped all the complaints together in one pile, it would amount to 1% of all units sold so far (again, conjecture on my part).
 
Yep. I would find it unlikely as well, but it is fun to speculate.😀
As far as the claims of low binned chips I see a couple of problems (I won't claim it's not true but until Apple is forthcoming everything is just conjecture)... 1) if true they are inviting a class action lawsuit in the US in which they could very well lose, and 2) the EU/UK have far more comprehensive anti-lemon laws then the US and the EU would have a field day with Apple. I suspect if you lumped all the complaints together in one pile, it would amount to 1% of all units sold so far (again, conjecture on my part).
 
I am not making excuses for Apple but from the many posts I have seen over the launch weekend and this week, I can say some of the people making claims were most definitely lying and/ or blowing things way out of portion.

There may be some legit cases were some users got defective phones that are overheating, but I feel like there would be way more people flooding forums and apple stores returning phones if it was an massive wide spread issue of phones about to explode in peoples hands. It would be making national headlines and Apple would have made a statement by now.
So it did make national headlines yesterday, in the national news. I was at Apple Store there was a long line of people returning phones. They even acknowledged the issue. I experienced it first hand with two pro devices! Don't think its made up..
 
Register on MacRumors! This sidebar will go away, and you'll see fewer ads.