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

Yes, but if you have 2/3 keys it could mess up those keys too. To avoid locking out the roommates you should bring theirs to be reprogrammed too.