Where is backup pin entry?

[AC Question]

I have a Samsung A3 2016 with Android 7. I activated the Direction Lock, but misunderstood how it works, and cannot retrace the pattern/directions. I set a backup pin - but I can find nowhere to enter it. Even after many attempts to enter the pattern (and I now have to wait 4 minutes each time), there is no backup pin entry option. This is silly: why have a backup pin if you can't use it?

(I have tried Android Device Manager but cannot change the lock mode. There is no Samsung Account active. I have tried hard reset (vol.down+power for 10 secs.); no change.)

How can I get to a backup pin entry field?

 

[B. Diddy]

Welcome to Android Central! I believe the backup PIN is used only when you're using the fingerprint unlock. You might be stuck with doing a hardware button factory reset: SAMSUNG A310F Galaxy A3 (2016) - How to Hard Reset my phone - HardReset.info