The difference between uid and cuid is: 1. UID responds to backdoor instructions, CUID does not respond to backdoor instructions; 2. UID card ID can be changed and uses backdoor instructions to change the ID, CUID card ID can be changed and uses ordinary write instructions Change ID.
##The difference between UID card, CUID card and FUID card
UID card (called GEN1 abroad)All blocks can be read and written repeatedly
Card ID can be changed and the ID can be changed using backdoor instructions
ID can be modified repeatedly
Responds to backdoor instructions (meaning it can be used to detect whether it is a clone) Card machine discovery)
The card ID can be changed and the ID can be changed using ordinary write commands
ID Can be modified repeatedly
Does not respond to backdoor commands (meaning it is not easily discovered by the anti-cloning system)
Use normal write command to change ID
More "anti-clone"
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