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Home / News / Technology News / Is Apple doing something to slow down old iPhones?
Technology

Is Apple doing something to slow down old iPhones?

Is Apple doing something to slow down old iPhones?
Written by Ramya Patelkhana
Dec 21, 2017, 12:15 am 3 min read
Is Apple doing something to slow down old iPhones?

Is your old iPhone/iPad slowing down? If you want to upgrade to the latest Apple devices because of poor performance, you might want to think again. Apple secretly slows down the performance of older iPhones "deliberately" through a "power mode" hidden in iOS, claim reports. Geekbench Founder John Poole first discovered this, while iOS developer Guilherme Rambo‏ unearthed the power mode. Here's more!

Battery Replacement
iPhones are purposely slowed down as they age

Geekbench developer Primate Labs' Poole found that performance of iPhones running on older batteries slows down by observing the devices' performance readings. He discovered that changing the battery on an iPhone 6S almost doubled its performance; the devices started behaving like a new one. He swapped the battery suspecting there was something wrong with the iOS as it only showed lower charge levels.

iPhone 6S, iPhone 7
The problem is widespread, says Poole citing his research

Poole carried out more tests using iPhone 6S and iPhone 7 by running different iOS versions. He observed not only batteries but a "code" present on iOS 10.2.0 and above slowed down the devices. On iOS 10.2.1, iPhone 6S's performance struggled; with the latest iOS 11.2, the performance worsened. With iOS 10.2.1, iPhone 7 didn't show much difference, but iOS 11.2 affected the performance.

"Powerd" Mode
iOS developer unearths hidden power mode

Later, iOS developer Guilherme Rambo followed up John Poole's research and discovered that a secret power mode, which Poole had theorized, is present inside Apple's iOS code. This mode was responsible for the iPhones' performance slowdown. On Twitter, he revealed that the power mode named "Powerd" is responsible for controlling the CPU/GPU speed and power usage based on iPhone battery health."

About
What is the Powerd mode?

Powerd (power daemon) mode limits the maximum clock speed of the device's CPU and GPU when the battery is low. It has a failsafe to ensure that iPhones don't heat up during usage or burst into flames. However, it also slows down the device as its battery gets old to avoid heating up issues. It is different from the iPhone's Low Power Mode.

Apple
Apple remains tight-lipped about Powerd issue

Many say the problem is not the presence of Powerd in the iOS but the fact that iPhone/iPad users are not being informed that their device performance is slowing down because of Powerd. Apple has so far not responded on the matter to give an explanation regarding the same. Poole said until Apple responds, "This will likely feed into the 'planned obsolescence' narrative."

Information
iPhone and iPad owners in a mess

People are saying that Apple has a moral responsibility to inform old iPhone and iPad users that their devices' performance is because of the battery wear and it can be fixed by replacing the battery instead of spending hundreds of dollars on new devices.

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Ramya Patelkhana
Ramya Patelkhana
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Ramya Patelkhana is a senior editor at NewsBytes. She has nearly seven years of experience in digital journalism and has previously worked with India News and Authint Media. She has a Bachelor's degree in Journalism and Mass Communication from the IK Gujral Punjab Technical University, Kapurthala, and an advanced diploma in Media Studies from IPW, New Delhi.
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