When the GSM went to the room, the guest had opened the door and entered the room. The guest said that the room card had poor contact at the beginning and could be used after several attempts. It should be caused by insufficient power.
When GSM arrived at the room, the guest had opened the door and entered the room. The guest said that the room card had poor contact at first, and it could be used after several attempts, which should be caused by insufficient power.