Can you reset the Face ID permission alert for an app?

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Created Apr ’18

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The first time you try to use Face ID for an app a system permission alert prompt is shown "Do you want to allow <app> to use Face ID" (like Photos, Contacts etc permissions). However, there appears to be no way to reset this.

I've tried deleting the app and re-installing, and even resetting Face ID on my phone. But once I re-install the app the Face ID permission is already enabled for the app in Settings -> Face ID, and when I attempt to use Face ID it works right away, without the permission prompt appearing.

Seems like a bug. To be clear, this is an app I'm running on my iPhone X via Xcode, not an App Store app (I don't know if that makes a difference, it shouldn't).

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Answer 1

KMT OP

Apr ’18

'disable' still works as it should for that app in settings?

If so, I'd expect what you're seeing is expected, and there is no 'forget' option. Resetting F_ID just wipes/resets the face(s), not it's functions.

If all you want to do is to see the ask-alert again, you can either change the bundleID on your app and repeat the build to the device via Xcode, or...do a restore on your device using a backup from before you first built the app to it (bit drastic, tho).

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