[apoelistas]

1. Radio concert firmware 0350 was a failure.

Did you use VAS5054a or VCP to update your radio?

I USED VCP. Do you think it makes a difference? Actually I prefer VCP over vas5054a for flashing purposes. Counting 3 successful flash updates with VCP (electrical - 09, parking distance control module, transmission). With the loan Vas5054a I had instrument cluster and again a previous version of PDC firmware. All other previous updates were done at audi dealer with SVM. The Concert 0350 firmware was produced by VCP (VCP can save firmware of control units before flashing, so it was created by them by saving the last radio concert firmware before facelift). It is in sgo format. It was sent to me by a VCP owner but has a modified date compared to the original VCP Concert .sgo (so I leave an integrity question mark here), as this firmware can be downloaded from VCP server (need licensed VCP and annual subscription). Audi never released to flashdaten this firmware. Maybe it is problematic???

you need space mate to make a small box with 2 wires for 12V and one obd socket connected to a few modules
That is like a small post package, that is all

I need diagrams otherwise I will mess up. I can only follow electrical diagrams because I have no prior academic background in electronics/electrical engineering.