Phaeton brake electronics does not accept coding

Hello, The brake electronics of my Phaeton forgot his coding. Probably when I had an unknowingly short time a steering pole switch (lek column electric) from the Tuareg. The error happened to me because the steering angle sensor had to be changed. It is again an original part for the Phaeton with the correct designation in it. Also an original steering angle sensor of a Phaeton is in it with the right item number. So everything again as it was original in it. There are I use Carport and up to 4 months ago I mainly read out older Audis. I can log into the brake electronics at the Phaeton, that is confirmed with a green hook. After that I can enter and save the original coding and workshop code. This is done successfully and Carport also displays the new values in the information area. After that I have deleted the error memory. After that I leave the control panel of course, the non-learned steering angle sensor also returns. Now I’m guessing, why doesn’t the control unit keep the coding? In my previous search for solutions, I’ve learned that it’s possible that other control units involved can prevent the coding. Is there any such thing in the Phaeton. What would that be? I also read about a case, b but the device didn’t keep the coding either. It was a false login code for him. My login code is 05476 for a V8. Based on the instructions for compiling the login code via the PR codes, I came to this code. The other variation does not work. I also tried the code combinations with 8 instead of 5 in second place. The contract workshop says: no idea if w I don’t know if we have time and no idea if we want to. I’m not kidding, I brought the car back to me. It would be great if someone could help me.