Two things…
According to forum members, Samsung has changed the firmware in their locks and they no longer support NTAG216 chips (or probably any other types aside from 4 byte NUID Mifare “classic” chips)… but they did not change the model numbers of their locks… just the firmware… so it’s impossible to tell if the lock will work without testing. This pissed me off to the point that I posted we should build our own open source lock, which came together rather quickly actually… and now we are working on getting some DFM feedback from a couple factories… but it’s all slow going because it’s holiday season everywhere.
Not at all… because your chip has a unique serial number (UID - unique ID) and this is what the locks use… unlike metal keys and locks, you don’t keep a “keychain” of “keys” on your chip, your chip is a unique key, and the locks maintain a list of unique keys allowed entry. What you program into the user memory of your chip is totally separate from the UID and has no impact on how most access control systems work - they typically just read the UID and that’s it (totally insecure btw).
