[sottopiombo]

Thanks Mark for the extra info.
I’ve got some infos... however nothing really good.

Looks like your car is one of the early ones MY 2016 I guess.

During that time it looks like Audi installed a kind of relabeled Audi A6 MMI2high unit in the A4.
That was changed somehow/somewhere in 2016.

Your unit should be part number 8W0 035 021 C. The last sw version should be your installed one.
For A6 the unit is labeled 4G1 035 021 J.
This unit comes with MHI2_ER_AU57x_P3634_2 installed.

I don’t think you can crossflash and doing so will destroy the unit.
Looks like flashing this unit is a dead end.

Thanks mrbla, just to add other infos:


My car is a MY2017 A4 B9 Allroad, coming with an 8W0 035 036 D MIB2 unit:

Address 5F: Information Electr. (J794) Labels: None
Part No SW: 8W0 035 036 D HW: 8W0 035 036 A
Component: MU-P-LN-EU 051 0442

Three weeks ago I have changed the MIB2 unit with another MY2017 MIB2 unit 8W0 035 035 C
Address 5F: Information Electr. (J794) Labels: None
Part No SW: 8W0 035 035 C HW: 8W0 035 035 A
Component: MU-P-LND-EU 052 0678

The CP was removed with ODIS and GeKo access online, together with SWaP reactivations; the unit works fine with no errors.

Does these information are useful to check if a SW upgrade is possible?

Thanks again.

Mark