I finally managed the update as well. The NAC (Wave3) in my Toyota Proace was updated from 31.09.46.62 to 42.03.33.42.
One thing may be worth to note: the new .tar now contains PaxHeaders in every subfolder. Those are needed for the update. If you have an older version of 7-zip it could happen, that the extraction does not work correctly. The Header-Files are named the same and collide while extracting. 7-zip can handle PaxHeaders since version 21.07, so update if needed.
I am currently trying to update my NAC Wave3 (version 31.09.46.62) to a Wave4 in my Toyota Proace, but I always get the error "Version not compatible with hardware". I tried different USB sticks and an internet is connected. The version I tried is 42.03.33.42 for Wave3 because of the issue edu_chirimoya talked about.
I see, thanks. The latest version (or any 43.xx and 44.xx version at all) presents an issue with AA in all Proace models though. That is why I only tried the 42.xx.
Is there anything else I could try differently?
