So, caveat emptor and all that, but I bought a Model Y key fob from another Tesla owner, and when I pair it it shows up as a key and not a 'key fob'. Buttons work, I can tap the NFC points to unlock and start the car, but passive entry does not. The FCC ID and all the labels appear identical to my working fob, and it does indeed say 'TESLA' and not "MODEL 3' on the bottom. Ideas? Since I do have one working fob, I don't think it's the car. Bad fob, or is there a reset that needs to happen to enable the BLE? I changed the battery, tried unpairing and re-pairing with the same outcome. Thanks!