Help needed adding ApexFlex to Switchbot keypad

[Pilgrimsmaster]

@Mage

I thought I could have created a Mifare applet.

Here you go…well it’s an answer, but not a solution

New NFC Sharing Applet

There are a few conflated terms here The P71 chip from NXP that the Apex Flex is built with has a hardware version that can do Mifare Classic card emulation, but that feature is not included in the version of P71 used for the Apex Flex. The Mifare Classic chip type (S50) is not actually NFC compliant. The term NFC means a specific type of RFID transponder that conforms to the NFC Forum standard for NFC Types 1 through 5, and the Mifare Classic does not, therefore it is not an NF…