Apple publishes detailed explanation of what happens when an old iPhone is slowed down


Apple slows down old iPhones with aging batteries to prevent them from unexpectedly shutting down and it's been doing so for a year now.

You have probably already read all about it, but now the company has posted a detailed explainer page that tells exactly what is happening to your device when it is being throttled. While some features are slower, other - essential ones - are not affected at all.

Below you will find two lists: one shows all the things that are slowed down or in any way affected by the slow down. The second list highlights other important features that you might have questions about. Those important features in the second list are not affected by the slow-down of the processor. 

Let's start with the first list and see what are the effects of a throttled old iPhone.

Features affected when Apple slows down an iPhone

  • Longer app launch times
  • Lower frame rates while scrolling
  • Backlight dimming (which can be overridden in Control Center)
  • Lower speaker volume by up to -3dB
  • Gradual frame rate reductions in some apps
  • During the most extreme cases, the camera flash will be disabled as visible in the camera UI
  • Apps refreshing in background may require reloading upon launch

And here is the second list of features that are not affected by the slowdown.

Features NOT affected by the slowdown

  • Cellular call quality and networking throughput performance
  • Captured photo and video quality
  • GPS performance
  • Location accuracy
  • Sensors like gyroscope, accelerometer, barometer
  • Apple Pay

Apple might have been silent about slowing down iPhones with older batteries, but it has now done the right thing by apologizing to users and posting a detailed, well-explained resume of what happens when it throttles an old iPhone.

You can read the whole explainer at the source link right below.

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