Why is NFC smart card selection slow or choosing the wrong card in Xiaomi MIX Flip?

NFC (Near Field Communication) is a short-range wireless communication technology that allows data exchange between devices over a short distance. In access control systems, NFC technology enables you to unlock doors and gain access to certain areas using smartphones.
For your reference, here are some suggestions as follows:
1. Set the location for the card. If multiple cards are present at one location, set the location for only one card;
2. Learn the card specifics by forcing learning on specific cards and corresponding gates 3-5 times or more;
3. You can manually switch to the correct card if an incorrect card is detected. Then swipe the card and exit the card swiping interface.