> It's close enough

Not really, because tools like Cellbrite are more limited with BFU, hence the manual informing LEO to keep (locked) devices charged, amd the countermeasures being iOS forcefully rebooting devices that have been locked for too long.

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CGMthrowaway an hour ago | parent [-]

There is a way now to force BFU from a phone that is turned on, I can't remember the sequence

	▲	duskwuff 26 minutes ago \| parent [-]
		Eh? BFU ("before first unlock") is, by definition, the state that a phone is in when it is turned on. There's no need to "force" it. If you mean forcing an iOS device out of BFU, that's impossible. The device's storage is encrypted using a key derived from the user's passcode. That key is only available once the user has unlocked the device once, using their passcode.