UID changeable mifare 1k card with backdoor

• It is used as a mifare card, it has backdoor to change the uid of the card.
• you can use libnfc' command nfc-mfsetuid to change the uid of the card
• Works exactly like the Mifare S50, with 16 Sectors and 4 Blocks each Sector, but the Sector 0 Block Zero known as Manufacturers Block where the Chip UID is stored, can be re programmed to any UID you wish.
• This is a perfect solution for a lost irreplaceable Mifare Cards ID, you don't need to re-enroll new cards. Just program this new Mifare 1K's UID to the UID of lost card then you have a new Exactly the same card.

A quick video of this copier in action

http://youtu.be/Pj51Os0omR0

Change the uid with proxmark3