Rubik RFID Cards 1k 13.56MHz M1 (8K-bit Storage) 0 Sector Writable UID IC Repeatedly Erase and Writeable Access Control ID Card (10 Cards)

False advertisement. Sector 0 is not writable

I have seen many negative comments, cards that came to me work without any problems. It should not be forgotten that these cards work at 13.56Mhz, so the device you will copy from the original card must be compatible with this.

Cards are not sector 0 writable

works for me , very easy to print as well

Ordered 2 times and all cards sent to me are defective and does not write. Had to return

Avoid such Chinese cards that claim to be sector 0 writable but are not, just use a proxmark3 or any alternative for guaranteed use.

Ordered twice and there are always defective cards. Returns and resolving the issues are way to hustle. 7 out of 20 cards are defective.

I want to return the products, doesn't allow me to copy .