Fri. Apr 19th, 2024

The brand new Standby Mode characteristic in iOS 17.

Jason Hiner/ZDNET

Apple rolled out its iOS 17.0.3 replace on Wednesday with a launch be aware that it “addresses a problem that will trigger iPhone to run hotter than anticipated.” ZDNET has examined this replace and utilizing a thermal digicam has concluded that it has certainly resulted within the iPhone 15 Professional and Professional Max operating cooler when fast-charging.

As broadly reported for the reason that arrival of iPhone 15 Professional on September 22, the iPhone 15 Professional and iPhone 15 Professional Max may get very heat when fast-charging or when utilizing third-party apps akin to Instagram, Uber, or Asphalt 9 that appeared to exacerbate a flaw within the iOS 17 software program. Apple insisted that the overheating situation was associated to a software program bug and was not associated to the brand new {hardware} or design within the iPhone 15 Professional fashions, which launched a brand new titanium body with an aluminum substructure to exchange the stainless-steel body from the previous a number of professional fashions. 

Evaluate: iPhone 15 Professional: Coming from iPhone 12 Professional or earlier? This improve will wow you

In my testing with the iPhone 15 Professional and Professional Max, I skilled two overheating points. The primary and most main one was the iPhone 15 Professional Max getting extremely popular to the contact when fast-charging it with Apple’s USB-C cable linked to a 35W charging brick. I used to be in a position to replicate this expertise in one other location utilizing the identical cable and charger. I used a thermal digicam to measure the warmth and located that the iPhone 15 Professional Max acquired as sizzling as 107.1 levels Fahrenheit. 

This was a lot hotter than different iPhone and Android telephones, which generally maxed out at 85 to 95 levels when fast-charging in my checks. The most well liked every other telephone acquired when testing in the identical situations was the Samsung Galaxy Fold 5, which acquired as much as 98.7 levels Fahrenheit.

The opposite overheating situation that I famous in my iPhone 15 Professional evaluate appeared when leaping between the third-party digicam app Halide and Apple’s inventory digicam app whereas I used to be capturing quite a lot of images exterior on an 82-degree day. After I would swap again to the Apple digicam app, it will very briefly show a message saying “iPhone wants to chill down” for 1-2 seconds earlier than I may begin utilizing it once more. Halide has additionally issued an replace to its app that seems to have resolved that situation.

Additionally: The perfect USB-C cables for the iPhone 15 in 2023: What the specialists suggest

I downloaded the iOS 17.0.3 replace and allowed my iPhone 15 Professional and iPhone 15 Professional Max testing items to empty their energy after which plugged them in for fast-charging utilizing the identical parameters and the identical tools in the identical location as my earlier checks. This time they by no means acquired greater than barely heat to the contact, and so they did not get above 93.8 levels Fahrenheit. They stayed between the excessive 80s and low 90s — an enormous enchancment from earlier than iOS 17.0.3 when the 2 iPhone 15 Professional fashions have been persistently above 100 levels Fahrenheit when fast-charging with the 35W charger.

Listed here are my earlier than and after iOS 17.0.3 thermal photos of the warmest the iPhone 15 Professional and Professional Max acquired in my checks.

Warmest check earlier than iOS 17.0.3

Earlier than iOS 17.0.3, the iPhone 15 Professional and Professional Max would repeatedly recover from 100 levels Fahrenheit when fast-charging.

Jason Hiner/ZDNET

Warmest check after iOS 17.0.3

After the iOS 17.0.3 replace, the iPhone 15 Professional and Professional Max max out at about 85-95 levels Fahrenheit when fast-charging.

Jason Hiner/ZDNET

Efficiency

One final be aware that Apple doesn’t seem to have decreased efficiency as a way to higher management the warmth of the iPhone 15 Professional fashions. I have not seen any variations within the pace or responsiveness of both telephone. Apple Insider additionally ran benchmarks on the iPhone 15 Professional and Professional Max after updating to iOS 17.0.3 and detected “little or no variance” with the pre-update benchmarks of each telephones.

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