kitsunehunter

7A FF <- Allow gen1a magic auth
85 00 00 00 00 00 00 00 00 00 5A 5A 00 00 00 08 <- Shadow mode enabled
85 00 00 00 00 00 00 5A 00 FF 00 5A 00 00 00 08 <- CUID mode enabled + MFC EV1 Perso mode + shadow mode disabled
7A FF 00 00 00 00 00 00 BA FA 5A 5A 00 00 00 08 <- allow gen1a magic commands to persistant memory 
85 00 00 00 00 00 5A 00 00 5A 00 5A 00 5A 00 08 <- switch to 7B GDM operation after using GDM script (DO NOT WRITE THIS CONFIG UNLESS YOUR TAG IS IN 7B OPERATION)

hf mf gdmsetcfg -d "7A FF 00 00 00 00 00 5A BA FA 5A 5A 00 00 00 08"
gen1a + CUID + shadow mode + gdm auth

hf mf gdmsetcfg -d "85 00 00 00 00 00 00 5A 00 FF 00 5A 00 00 00 08"

kitsunehunter

So, you correctly identified you have a iCLASS SE or SEOS credential.

Before we begin:

HID iCLASS Credentials tech primer

What does all this shit on my card mean?!

Key Terms:

• SIO - Secure Identity Object