Fix Checking Software Version Management fault.
Please enter value from module 5F, adaptation channel: Confirmation of installation change.
Connect with module 5F, go to adaptation channel "Confirmation of installation change" and read current value.
Enter old value in the field above and generate new key matching your system.
Enter new value in adaptation channel "Confirmation of installation change" and save it.
Now you can clear 1555 / B201A fault code from the 5F control module.
After firmware update of infotainment main unit it's required to enter this code as an confirmation that the procedure was done. It's a simple safety mechanism.
If the code is not right, you will see fault code 1555 / B201A in your infotainment control module.
This tool takes the hex value stored in the control module and XORs it with 0xC9D2. Result is your new key code.