How to write PACS data to an iCLASS legacy card

Hello all,

Long time reader, first time poster.

I’ve done a lot of reading and research into cloning iCLASS credentials and I’m still stumped by one thing…

I’ve got an iCLASS SE card which I’ve managed to get the PACS data (facility code and card number) by using an R10 iCLASS SE reader and an espkey. How would one go about writing this data to an iCLASS legacy (picopass 2k) card? How does the icopy-x do it?

I am familiar with the proxmark3, and have some experience with iCLASS, I just have no idea how one would write the relevant data or to which block (6, 7, 8, or 9) to attempt the same type of entry that an I copy x would.

Any help would be greatly appreciated in advance!

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Take a look at commands under hf iclass, in particular, encode


Thank you sir! I saw that command early in my learning days, but ignored it since. Much appreciated

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