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Reverse Engineering iOS 18 Inactivity Reboot

(naehrdine.blogspot.com)
514 points moonsword | 2 comments | 17 Nov 24 21:50 UTC | HN request time: 0.401s | 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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Kwpolska ◴[18 Nov 24 07:49 UTC] No.42170569[source]▶
What legit use case involves not touching your phone at all for 3 days?
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1. Hackbraten ◴[18 Nov 24 09:12 UTC] No.42170902[source]▶
Maybe you want people to be able to reach you on a secondary, inbound-only phone number.

I’ve also heard people re-purpose old phones (with their batteries disconnected, hopefully) as tiny home servers or informational displays.

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2. neop1x ◴[20 Nov 24 17:03 UTC] No.42195950[source]▶
The article says the phone reception works even BFU (just without contact info)