PM3 Commands Reference (Iceman Firmware):

Main Help

---

Current command:
lf em 4x70 unlock --help

---

Unlock EM4x70 by sending PIN
Default pin may be:
 AAAAAAAA
 00000000

usage:
    lf em 4x70 unlock [-h] [--par] -p <hex>

options:
    -h, --help                     This help
    --par                          Add parity bit when sending commands
    -p, --pin <hex>                pin, 4 bytes

examples/notes:
    lf em 4x70 unlock -p 11223344      -> Unlock with PIN
    lf em 4x70 unlock -p 11223344 --par      -> Unlock with PIN using parity commands