Help: Unable to recover sector keys on genuine MIFARE Classic EV1 with Proxmark3

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You might try re-running autopwn with a dictionary:

hf mf autopwn -f mfc_default_keys

If that doesn’t work you may be able to sniff the keys from the reader, here’s some more info:

Dealing with MIFARE Classic 1k static encrypted nonces (Sniffing w/Proxmark 3 Easy)

Version Used This comes up now and again and has been sorted on the forum but I found a method that I feel is quite clear. I ran into this when playing with the SwitchBot Keypad. So, if you see this: [Screenshot 2024-05-06 112821] Follow these steps: Put the tag on your proxmark and run the following command hf 14a sniff Scan the tag with the reader while its up against the proxmark. Let it register a few times for good measure then press the button on the side of your proxmark to stop th…