GEN2 CUID Changeable UID

Mifare Classic 1K Compatible

13.56MHZ 14443A RFID NFC Card

Acts as a completely normal Mifare Classic 1K

Card, but Sector / Block 0 writable

Sector / Block 0 contains Card ID (UID)

So Card ID can be changed :-)

ALL Sectors / Blocks (including Block 0) Writable using:

  NFC phone Android App(MCT)

  PN532

  ACR122U

  iCopy3/5/8

  PM5/Pro,300CD

  Proxmark 3

The product is as follows:

1. CUID card block 0 (UID's block) can be modified arbitrarily.

2. Card default password is FFFFFFFFFFFF (6 bytes 0xFF).

3. Android phone NFC modify UID using MCT App (Mifare Classic Tool from Play Store)

4. Only supports 4 byte UID

CUID card：

The rewritable anti-shielding card can repeatedly erase and write 0 sector.

It can be used when the UID card copy is invalid, and the firewall can be bypassed.

Note:Common 13.56mhz rfid reader writer cannot write the CUID cards!

Package Incuded:

1 x Mifare 1K S50 Compatible GEN2 Block 0 writable white Card