The hotel room card can't be opened

First of all, you need to know what brand of your lock is, and each brand operates differently. You can send a MasterCard and see if you can open it. If the main card can be opened, just redesign the room number information of the door lock. It is also possible that the main tongue switch of your lock is broken, so that neither the guest card nor the floor card can be opened, and only the main card can be opened. In addition, the time you send must be used within 5 minutes. After a long time, the time of locking will be far from that of the computer, which will also lead to the guests being stuck in a certain period of time and unable to open the door. If it doesn't work, ask the original door lock supplier for help.