Setting up Samsung SHS-3321 with NeXT

[Pilgrimsmaster]

This thread might be worth a read

Samsung 3321 not able to register implant

I have a new Samsung 3321 deadbolt lock and I can’t register my implant or any tags that are not Samsung branded! My implant is an ntag216 chip mifare ultralite. Is there anything obvious I’m missing to get this lock to register the tag? The tag is recognised if I try to unlock, but I can’t register it using the instructions. The chips I’ve tried to register are a mix of mifare classic and mifare ultralite. So far no joy!