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This hasn't anything to do with my experience with Android phones, I've helped others out with no issue, though indeed no experience with this Samsung overly protected cr*pshute. I've setup facial recognition which functioned. Meanwhile I have found more information regarding this issue, and lo and behold, it's specifically a Samsung issue, to just lock for no apparent reason.
@Veritosser Hello, keep in mind that for security reasons, even if you have face unlock configured, you must have a screen lock security PIN configured. This is indicated in Settings / Biometrics and security / Face recognition / About unlocking with biometrics .Greeting.
That's where we disagree I guess. Sure, mobile banking for instance I can understand, but there's loads of stuff I honestly don't give a toss about. I believe the user should be in control of the amount of security he or she wishes, not the other way around.