iPhone 6s phone app freezes after iOS 12 update

The phone application (green telephone icon) on my iPhone 6s has become very flaky after updating to iOS 12. When I power on the phone, I can bring the app up, but it is totally unresponsive to touch and frozen on whatever screen (such as Contacts) I last left it on. The only solution I've found, when this happens, is to turn the phone completely off and back on, which usually makes it work properly again. Anyone else had this error and found a better fix?

iPhone 6s, iOS 12

Posted on Sep 25, 2018 12:48 PM

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prc123b Author

Level 1

17 points

Posted on Oct 4, 2018 4:58 PM

Update: after talking with support, I reset all settings on the phone (Settings>General>Reset>Reset All Settings). This erases your passcode and wifi passwords, sets the default wallpaper, etc., but doesn't affect stored data like photos or music. After that, the phone app was working.

BUT...if I start changing the settings, such as turning on the passcode and using different wallpaper, the phone app periodically freezes again. I haven't been able to nail down yet precisely what setting change causes it.

So, my guess is that it's an iOS 12 bug, and a pretty serious one at that. Having reliable phone service is a pretty essential thing on a phone...

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iPhone 6s phone app freezes after iOS 12 update

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