Hey , I have been using my proxmark 3 since august and have been having great success cloning key fobs / cards as a side hustle, however I’ve been stuck on one persons key card. Its a guardall gproxii card and I have used the recommended commands in pm3 to clone this card to my t55xx fobs . After I clone it shows done and verified when I search for the card after it comes up as Valid Guardall G-Prox II ID with correct fmt / fc / cn but the raw number is different even after attempting it a few times the raw number isnt identical. I gave him the clones anyway to see if they’d work and he said they dont. Any help regarding this would be great , ill post the commands im using below.
G-Prox-II - len: 36 FC: 20 Card: 716988, Raw: fbc836a56f13c86021c163da
lf gproxii clone --fmt 36 --fc 20 --cn 716988
Data written and verified
lf gproxii reader
G-Prox-II - len: 36 FC: 20 Card: 716988, Raw: f98c67b8c6318cf10588718e