1. UID card block 0 (UID block) can be changed at will.
2. Modify block 0 directly with normal mif read and write equipment.It Is Recommended To Use Professional Rfid Equipment For Reading And Writing (Mct Writing, Some Mobile Phones Are Unstable And May Not Be Able To Write.
3. The default password of the card is 12 F, FFFFFFFFFFFF.
The card supports printing customization, the quantity is 200PCS, please consult customer service in detail!"