in hotels, if you lose your room key card, how are they able to reprogram the new one so it works and the old one doesn’t?

Question

Is there some system that transmits information to your door card reader on what the new key is, or is it something different entirely?

In: 1028

Answer 1

I don’t know the actual technology behind it, but think of a manual key. If you lose a physical key, you can go and get a duplicate made. You can also change out your lock and get a totally new key made. It’s the same thing, just electronically. There is a button to deactivate any other keys, and there is a button to duplicate the keys. The “copy” of the key is saved electronically.