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Reverse Engineering iOS 18 Inactivity Reboot

(naehrdine.blogspot.com)
511 points moonsword | 1 comments | 17 Nov 24 21:50 UTC | HN request time: 0s | source
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thrdbndndn ◴[18 Nov 24 01:27 UTC] No.42168908[source]▶
Two questions:

1. surely unconditionally rebooting locked iPhones every 3 days would cause issues in certain legit use cases?

2. If I read the article correctly, it reboots to re-enter "Before First Unlock" state for security. Why can't it just go into this state without rebooting?

Bonus question: my Android phone would ask for my passcode (can't unlock with fingerprint or face) if it thinks it might be left unattended (a few hours without moving etc.), just like after rebooting. Is it different from "Before First Unlock" state? (I understand Android's "Before First Unlock" state could be fundamentally different from iPhone's to begin with).

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bonyt ◴[18 Nov 24 01:39 UTC] No.42168981[source]▶
> 1. surely unconditionally rebooting locked iPhones every 3 days would cause issues in certain legit use cases?

I wonder if this explains why the older iPhone I keep mounted to my monitor to use as a webcam keeps refusing to be a webcam so often lately and needing me to unlock it with my password...

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1. athrun ◴[18 Nov 24 05:48 UTC] No.42170032[source]▶
I have the same setup and what works for me is putting the phone into Supervised mode using the Apple Configurator.

From there, you can enable single app mode to lock it into the app you're using for the webcam (I use Camo).