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this post was submitted on 27 Aug 2023
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Android
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DROID DOES
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Find My Device is completely useless until the device is unlocked. As long as it is rebooted and not unlocked, there is no way to detect its location. Since most phones (if not all), use an encrypted filesystem. With such, no service can't start if the device isn't initially unlocked after reboot, including Find my device.
This isn't only a issue with Google's implementation, it's the same with other implementations to.
Android developers can specify that their apps need to run before the pin is entered, via direct boot mode. This is how alarms still work, even if your phone takes an upgrade overnight, and restarts automatically as part of that process.
I can't say whether Google's Find My Device currently does this, but there is no technical reason it can't.
As far as I remember updates don't reboot to bfu, but I get what you're saying