on boot
    chmod 0660 /dev/sec-nfc
    chown nfc nfc /dev/sec-nfc
    chmod 0660 /dev/p3
    chown system system /dev/p3
    chmod 0660 /dev/pn547
    chown nfc nfc /dev/pn547
    chmod 0660 /dev/p61
    chown system system /dev/p61

on post-fs-data
# NFC KEY
    mkdir /data/vendor/nfc 0770 nfc nfc