How to kill a key (disable old key) for a motel room door:
- Make a key for the room that you want to disable
- Use “Check-In” feature to make a new key.
- Do NOT use “Duplicate” to make the new key.
- Take the key that you made and scan on the room door.
- Turn the handle and open the door.
- If steps 4 and 5 are not completed, the old key will still work.
- Make sure you shut the door after complete these procedures.