If I let my boss program my nfc implant for the hotel locks can I later undo it and get control to the tag back? xNT

[amal]

@Royale

There us one card for every door. They allow you to open any door but unlock the custom keys which only work on one door and for a short period of time.

I’m surprised… usually there are “manager” cards that can open all doors (or almost all doors).

@Royale

Will I still be able to use the tag if I format it with an app or will it forever be locked?

You will definitely want to use the Dangerous NFC app first to disable lock bytes and protect the capability container (page 03). It will also set a password and protect the configuration bytes at the end of the tag, but those will definitely not be used by the hotel key system… so protect your tag with Dangerous NFC and you will always be able to overwrite whatever the hotel key system puts on your xNT.