Please help with AUDI S4 1998

[PSAcars]

​Hello I nead help with Audi A4/S4 V6. I have ecu on car but the ecu is not working ok. If I found a used ecu what is the best way to make it work on car, immo off or copy the 29f400 and 95040 from ecu 1 to ecu 2? Please give advice.

[gsmrepair]

On that car (immo2) just adapt channel 00 on instruments and you are ready to go.

[PSAcars]

Thank you. When I put new ecu I will have to go in instruments and adapt channel 00 ??? Do I need some code or login?