How to Solve Yanhua Mini ACDP “Enter Wrong Authorization Code” Error

Customer Problem:

I bought a new Yanhua BMW ISN module with authorization code, I tried to get the authorization by myself, but it failed. When I entered the authorization code, a message appeared “Illegal authorization code, 3 chances left. The Yanhua Mini ACDP will be locked if you enter the wrong Authorization code 4 times!”
Wrong - Authorization - Code - 1

CnAutotool.com Engineer Solution:

The authorization code you entered is the date of manufacture, not the authorization code.

Please take off the green security seal on the module box, and clean up the QR code as below

Wrong - Authorization - Code - 2

Here is the complete operation guide for reference

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