I might have got it working on 4B0906018DC . From the logs boost actual is halved. Car is driving fine, no fueling issues what so ever. Will do some more testing and post results.
Anyway, as i did not found any working files of 5120 for my ecu, i made my own. Took time, but it is working. All was done per instructions on S4wiki.
And thank you for help @rogerius for finding missing maps and confirming my asm locations were right.
I will add stock file with 5120 applied and full kp + 5120 . Did not post logs as i was not happy with my boost. Need to figure that out that