Hello, I bought a MC-203E electric door lock from your company, now during the process of using it, I found that many rental houses are equipped with cards outside, and they can also enter and exit, now I want to control the use of the card provided by the tenant, the card must be taken from me to use it, how do I set it up?

Hello! Thanks for using our company's products! You lock the remote control and type "*+1234+#" on the remote control, the locked light flashes, indicating that you have successfully entered the management state. Then you type "88+#" after the setting is successful, and then press "*" twice to exit the management state. The system will start to intercept the copy card.