Date of last successful writing to 1K classig tag?

Forum / MIFARE SmartCard IC`s / MIFARE Classic / Date of last successful writing to 1K classig tag?

  • 17. June 2021 at 18:48
    Hello friends,

    I have 2 Mifare Classic 1K cards, one of which is the clone of the original card, as a duplicate (apart from the UID serial of the card itself).

    As I cannot remember now which one is the original and which is the clone, is there any way that by reading each tag I can find out the date of the last successful writing?

    Is this information stored somewhere on the card so that can it be accessed and read (similar to the "last modified date" in a computer file?)

    That would solve my riddle as the one with the oldest date is clearly the original.

    Thanks a lot for any help you can give me.


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