In the latest release, you can use detect reader using a saved card. This method is the recommended one because it won't use a fixed UID like normal detect reader uses and also it is more discreet than using a computer connected to your Flipper.
approach the reader while doing the detect reader function on your saved file. Once nonce collection is completed an outputted mfkey.log file should appear in your NFC directory.
if you are unable to or don't know how to compile mfkey32v2, you can also use Flipper's web tool version of mfkey32v2
- connect your flipper, make sure qFlipper or any other serial connection to the device is closed.
- go to the link above
- press
GIVE ME THE KEYS
button - it will pull your log file, calculate the keys and add them to your dictionary.
KEEP IN MIND: this method will automatically replace your mf_classic_user_dict.nfc
dictionary with a file containing just these new keys, so make sure you have a backup as this method will remove any keys you currently have stored in mf_classic_user_dict.nfc
Once added, clear the cache of your flipper and re scan your initial card. you should now notice more keys are found in the process of scanning the card