How To Fix iPhone 15 Pro iOS 17.0.3 Overheating Issue?

Apple recently acknowledged an iPhone 15 Pro iOS 17.0.3 Overheating Issue running abnormally hot during normal use. This overheating problem has been reported by a number of iPhone 15 Pro and iPhone 15 Pro Max users after updating to iOS 17. Reports indicate the phone feeling warm even during light use, and getting hot enough to be uncomfortable during processor-intensive tasks like gaming or navigation.

In response, Apple has now released iOS 17.0.3, which includes an important update to address the overheating issue on the iPhone 15 Pro lineup. Let’s take a closer look at the iPhone overheating problem, Apple’s software fix, and what iPhone 15 Pro users need to know.

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Overview of the iPhone 15 Pro Overheating Issue

The iPhone 15 Pro iOS 17.0.3 Overheating Issue and Pro Max is related to software, not hardware design or components according to Apple. Essentially a bug in the power management system of iOS 17 causes the processor to run hotter than intended during normal use. While all smartphones will get somewhat warm with intensive tasks, the iPhone 15 Pro models have been getting much hotter than expected or desired by users.

Some key points on the overheating problem:

  • Issue emerged after updating to iOS 17, indicating a software bug as the cause. Not a hardware defect.
  • Primarily affects the iPhone 15 Pro and Pro Max, not standard iPhone 15 models.
  • Can occur during normal use like web browsing, not just processor-intensive activities.
  • Makes the phone uncomfortably hot to hold in some cases.
  • Most pronounced issue when using the camera for photography or videography.

The overheating does not appear to be severe enough to cause permanent damage to the iPhone. But it can impact battery life and performance when the phone gets too hot. For a premium device like the iPhone Pro that touts advanced performance and camera capabilities, overheating to the point of throttling those features is a definite concern for users.

iPhone 15 Pro iOS 17.0.3 Overheating Issue

In response to user complaints and media coverage of the iPhone overheating issue, Apple made correcting the problem a priority. iOS 17.0.3 was fast-tracked through developer and public beta releases, with a focus on addressing the thermal management and power usage problems.

On October 5th, 2023, Apple publicly released iOS 17.0.3 for the iPhone 15 lineup. The update includes the following fixes aimed at the overheating bug according to Apple’s release notes:

  • Optimizations for temperature management and performance. This adjusts how aggressively the CPU and GPU ramp up power usage, to avoid spikes that lead to excess heat.
  • Fixes issues that caused some apps to use higher power than desired. This directly addresses instabilities in power management that let certain apps push hardware to overheat.

In addition to the two key fixes above, Apple says the update provides “important bug fixes and security updates.” They have not specified if any of those directly relate to the overheating problem.

Early testing indicates that the iOS 17.0.3 update does indeed address the overheating issue on the iPhone 15 Pro models. While still performing well in benchmarks, the processor no longer sustains high temperatures after the update. Users are reporting the phone now feeling only mildly warm under most conditions. The update appears to have successfully optimized the power management algorithms.

What iPhone 15 Pro Users Should Do

For iPhone 15 Pro and iPhone 15 Pro Max users concerned about overheating, updating to iOS 17.0.3 is highly recommended. Users can trigger the update manually by going to Settings > General > Software Update and following the prompts.

Updating as soon as possible is advised, as the overheating issue can impact battery life and performance. iOS 17.0.3 should install quickly and requires no major actions. Your iPhone will remain on the same version of iOS 17, just with this important bug fix update applied.

Apple does not typically offer rollbacks to older iOS versions. So once you install 17.0.3 you will not be able to revert to the initial iOS 17.0 release. This is likely not a concern, given the benefits of getting the overheating fix. However, as always it’s wise to back up your iPhone before any software update.

The iOS 17.0.3 update is available for all iPhone 15 models. However, it only addresses an overheating issue present on the iPhone 15 Pro and Pro Max. Standard iPhone 15 models were not experiencing this problem to begin with.

Going forward, Apple has not commented on whether additional updates may be warranted to refine power management on the A16 Bionic chipset in the iPhone 15 Pro. For now, the iOS 17.0.3 update appears to have adequately addressed the overheating issue through software tweaks to the thermal engine and power allocation systems.

Frequently Asked Questions

Here are answers to some common questions about the iPhone 15 Pro overheating issue and the iOS 17.0.3 update.

Is the overheating a hardware or software issue?

Apple has confirmed the overheating is caused by a software bug, not a hardware design or component flaw.

Does updating to iOS 17.0.3 fix the overheating?

Yes, iOS 17.0.3 contains optimized power management and thermal mitigation specifically to address overheating on the iPhone 15 Pro models.

How can I get the iOS 17.0.3 update?

You can trigger it manually by going to Settings > General > Software Update. It will arrive via automatic update soon if you don’t opt to install it immediately.

Does this affect the regular iPhone 15?

No, the standard iPhone 15 models are not experiencing an overheating problem. The update fixes a bug specific to the iPhone 15 Pro and Pro Max.

Can I rollback from iOS 17.0.3 to iOS 17.0?

Unfortunately, you cannot revert to a previous iOS version after installing an update. So 17.0.3 will be the only option until future releases.

Will performance be reduced after the update?

Some minimal performance impact is possible. But Apple aimed to optimize power management without noticeable slowdowns, and early testing indicates they succeeded.

How did this issue get by Apple’s testing?

Even with extensive beta testing, some bugs can remain obscure until released to millions of users. Apple responded quickly to user feedback about overheating.

Does the update impact battery life?

The excessive heat was negatively impacting battery life for some users. By fixing the overheating, 17.0.3 should improve or restore normal battery performance.


The sudden overheating issues on the iPhone 15 Pro models came as an unwelcome surprise for users. However, Apple responded promptly by making software optimizations to mitigate the problem. The over-the-air update process allowed releasing an fix to all users just weeks after the issue came to light.

Installing iOS 17.0.3 will deliver important under-the-hood updates that calibrate power draw and heat dissipation appropriately for the iPhone 15 Pro’s A16 chipset. With these tweaks, the iPhone 15 Pro can resume reliable and comfortable operation. This fast response helps maintain customer satisfaction through prompt resolution of post-launch problems.

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