How does mi band nfc copy encrypted access control?

In fact, it is relatively simple to copy the encrypted access card to the mi band 5NFC version, which only takes three steps.

The first step is to crack the encrypted access card with NFC mobile phone. This step is the most critical. If you don't succeed, you can't copy it to the bracelet

Install mifare software on your mobile phone.

Read encrypted access control

Start key mapping

If there is a dead sector, it means that it has not been cracked successfully. On the contrary, if every department has data, it is successful.

Choose to save the cracked access card information.

Step 2: Create a new blank card on the mi band 5NFC.

The third step is to copy the information in the original card to the mi band 5NFC version with the software in the NFC mobile phone. First, put the NFC version of mi band 5 in the NFC area on the back of the phone. When a new card is detected, select "Write Label" and "Write Dump" in the main interface-open the files saved in the first step, select all sectors to be written, and then select all files to be mapped for write dump.

After these three steps, the access card of mi band 5NFC replication encryption community is completed.