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iPhone 15 overheating

Hi everyone. I’ve recently purchased the new iPhone 15 pro max and it is heating up even when I’m not using it.

I was wondering if anyone else is having this issue or if it maybe a setting that is causing it that I can turn off?

Any advice is appreciated. :)


[Re-Titled by Moderator]

iPhone 11 Pro, iOS 16

Posted on Sep 22, 2023 6:04 PM

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Posted on Sep 24, 2023 10:37 AM

I have same exact issue ... called apple and they suggest to turn off location services , also background app refresh ...BUtt that dose not helped ...

My 15 Pro Max is getting hot and battery draining too quickly ... There is something definitely wrong with it ... Apple need to fix this asap ...

935 replies

Feb 12, 2024 10:08 AM in response to Asimona

Asimona wrote:

Why nobody answer at our question about these problems?
I have the new iPhone 15 pro max from two days and I have sold my IPhone 13 Pro Max and now I’m regretting.

The issue has been addressed repeatedly in this thread.


If you bought the iPhone 15 Pro Max from Apple within the last 14 days and you're not happy with it, return it.

hey apple why you don’t fix the problem with overheating? We have payed a lot for the new phone ..and now you came with excuses?!! Give us a good explication and fix the problem.

Apple doesn't read or respond here. If you want to let them know your thoughts, use the feedback page:


Product Feedback - Apple


If you want to discuss the matter directly with Apple, start here:


Genius Bar Reservation and Apple Support Options - Apple

Sep 28, 2023 9:51 AM in response to Ruthy-Roo

For me the problem is now just with calls. It begins to overheat on calls longer than 5 mins.


Just tried to call (room to room) an iPhone 14 still on iOS 16:

  • iPhone 15 Pro - 10 mins call 5 points of battery lost - overheating
  • iPhone 14 - same 10 mins call 1 point of battery lost - cold


iPhone 15 Pro not overheating is low power mode enabled.

Sep 29, 2023 6:39 PM in response to lobsterghost1

Unfortunately that’s what a lot of folks seem to be doing. Excitement with possessing a brand new device.


  • Connect new phone to old and start sync process.
  • When complete disconnect link.
  • Without realizing that background tasks (indexing, cloud shared photos etc.) are still running, promptly check out new features of an amazing phone - Hi-Res videos, Raw photos, games, share them to friends via social media, make calls etc.
  • Observe phone gets warm (more so with the titanium band), read these posts on forums and news sites and freak out.


Problem is they don’t know how long the end to end process takes and there is no update/migration status feature telling them when it’s done.

Oct 1, 2023 11:43 PM in response to Lopusko

It will be good for those experiencing problems to indicate the situation where the problem is.


  • We know some apps are buggy eg Instagram. What app are you using? Are all other apps closed.
  • We know that there are issues with some networks. What network are you on?
  • Is it being observed on a newly opened phone or one during/after migration?
  • Are you doing initial data migration on WiFi or on a mobile network? What’s the connectivity like?
  • If hot, how hot? Warm to touch, very hot like a kettle boiling.
  • What’s the elapsed time of usage before you notice this issue?
  • Are there visible messages on the phone indicating a temperature or other warning.


Otherwise all we read are complaints. And anyway Apple is aware of these issues and are working with 3rd party vendors and to resolve OS related issues in a future OS release.

Oct 2, 2023 1:37 AM in response to Ramchand Ramesh

I think its fine the read complaints, as it gives an indication of how widespread the issue is. The others in this thread who are being militant about *their* iPhone not heating are being pointless. It's fine for people to note their complaints and raise the issue.


Anyway, I agree with your points, it would be even more useful to actually try to see what patterns are causing this issue. I'll share mine:


  • Fresh iPhone 15 Pro Max, no restoration from backup or transfer.
  • Worked perfectly fine and cool to the touch, and great battery life.
  • Only installed app was Facebook Messenger.
  • After connecting to eSIM and to network, battery life took a hit (even on WiFi).
  • Messenger video call on 5G drained battery super fast and heated up the phone.
  • Putting it on charge also heated it up significantly.
  • Heat was not scalding hot, but enough to make it difficult to hold for more than a few seconds. Think like a fresh cup of tea on the outside. No temperature warning though.
  • I had been using the phone lightly for 2/3 days before this and had no issue.


I havent done what many others have done yet, such as making normal phone calls or taking long videos or playing games. For me, this reads like some sort of charging / network optimization issue, as it was working beautifully before (and I was hoping maybe I'd gotten one without any issues!). That feels fixable in a software update, but what do I know...


Oct 2, 2023 5:24 AM in response to IbbyApple

There's been a lot of discussion on social media sites but I don't want to link them as they may not be correct.


  • A 5G network is a fast network and it allows download of a lot of data. Social media apps are notorious for significant background activities to pre-process data for a nicer user experience when you open the app. This consumes battery and generates heat.
  • When the 5G network is not available, the phone keeps trying to connect unless Auto is enabled for the phone to move to another network (4G). This also consumes battery and generates heat.
  • Under normal circumstances and with good use of OS, this in itself should not be a problem. But if there are OS bugs or app are not optimised there will be overload, heat and more battery issues.


Again, Apple has not disclosed the problems and they may never will. But rest assured they will be fixed in an OS update.

Oct 2, 2023 12:39 PM in response to Ruthy-Roo

i have notice the overheating issue in a while using a few apps...

The most important to me is facetime (i use it a lot), just a few seconds after being on a facetime call it gets really hot, to the point i have to switch hands every minute to let it cold down. (my hand).


other apps i notice:

  • Snapseed.
  • Instagram


-Iphone 15 pro max 512gb.

Jan 18, 2024 12:21 PM in response to SirPablito

  1. The first thing you should do is to document, image, call in Apple support. Via OTA diagnostic, Apple L2 can spot hardware issues and heat events. That collection is essential towards Apple understanding who has some issues, and why. Cuppertino fuses all that engineering data.
  2. If the issues exist, persist, are obvious, the L2 specialist will defer you to a Genius bar, or send in the phone. At this point, you are incorrect to say Genius Bar is not practical because...
  3. Keep the support emails! You would be flabergasted how amalgamating support requests for the same issue gets a Sr Advisor very proactive at assisting that client.


Sep 24, 2023 4:48 PM in response to Ruthy-Roo

Same here my iPhone 15 PM Is so hot to the touch after any bit of use. Even when I have it in case face down when not using it the screen is too hot to touch. I haven’t gotten the “overheating” notification but this goes beyond indexing or settings. Apple this seems to be an issue. When you can’t do simple tasks on a $1400 because the phone is too hot to touch or charge. That seems like an issue that needs to be addressed and shouldn’t have to turn off phone features to maintain the phone temperature. Fix this Apple.

Sep 26, 2023 3:01 PM in response to Ruthy-Roo

I hadn't experienced any noticeable heat issues with my iPhone 15 Pro until today. I purchased the iPhone 15 Pro and restored it from an iCloud backup four days ago.


Today, when I picked up the phone from my desk after not using it for some time, I noticed that it felt warmer to the touch. This seemed a bit odd, but I didn't think too much about it at the time. Not long afterward, I realized that my battery was draining faster than usual. Now, I believe this may be due to whatever is causing the heat issue. Shortly after plugging the phone in to charge, I saw the 'Charging On Hold' message.


I'm not complaining as much as I'm hoping this information may be useful in finding a solution from Apple. I understand that four days may seem like a long time for indexing, but considering the amount of data on modern iPhones, it's quite a task. To put it in perspective, there's now 75 times more data on my phone than the total storage capacity of the desktop computer I had back in sixth grade, five years before the first iPhone was released. Apple has only had four days of data with any real sample size. I have confidence they will find a solution soon.

Oct 2, 2023 9:07 AM in response to 100clicks

Okay, 15 Pro 256GB user here again. This is my 10th day with the phone, and I encountered a serious battery drain problem last night. I put the phone into low power mode at 1:24 AM when the battery level was 43%. When I woke up at 8:39 AM, it was down to 25%. I had experienced some mild overheating and battery drain issues in the first 3 days, but everything seemed to be going well until last night. I have never encountered such a serious battery issue in the past 10 days.


And please don't tell me the phone is in emergency mode and the battery is draining rapidly because it's searching for networks. I haven't introduced any e-SIM to the phone since the day I opened the box, so the test conditions haven't changed during that time



If this happens again. I'm returning the phone.

Oct 2, 2023 4:15 PM in response to Ruthy-Roo

I recently posted this on a different but smaller thread I was following on here. Not sure if someone else has posted these steps already in this thread, but I’m not going to read 38 pages to find out…


Potential fix that seems to have worked for me. I've factory reset my 15 Pro Max and fresh installed all apps manually rather than restore from icloud backup. I heard that there can be problems with icloud backup migrations to a new phone where software gets corrupted. This manual install process was slow and miserable. But, it seems to have fixed my battery drain issues. Phone drained 4% overnight rather than 20%. And lasts a full day now. Battery still doesn’t last as long as my 13 Pro Max did, but it’s much better at least.

For those that dont want to wait for if/when Apple fix this, maybe give this a try. Especially as the 14 day returns window is coming up.

Make a new full phone icloud backup to be safe.

Make individual app backups where possible, like Whatsapp, apps with APIs/keys/config files.

Factory reset iPhone 15x.

Don't restore from backup, but sign into Apple ID when prompted.

Manually install all 3rd party apps from AppStore.

Hope for the best.


My battery drain since doing the steps above


iPhone 15 overheating

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