Hi!

My friend recently bought a 2010y audi A6. And today he tried to update his unit in according to install new map (from 2017). Something goes wrong in this process and he ended with bricked unit. It's not cheap. But I searched ethernet and found a pdf that describing how to repair this unit ( https://pl.scribd.com/doc/225614389/How-...r-3G-Plus) if this is software fault.

And this should be soft problem, since:

Unit is turning on, green screen for a half second with:
MMI3G EmApp 22.30.1642
Starting up.
Scan metainfo
Please wait

And then red screen:
MMI3G EmApp 22.30.1642
MU9307
Trigger to shutdown in 53 sec!
Mount error
Update failed! Trigger shutdown after countdown...

We downloaded few firmwares from many sites and unpacked them on SD card. (one is version 0031_3 with 1,2,metainfo2 ; another one is 0257_6 with 1,2,3,metainfo2 and many versions between them), since I tried to just give unit the source. Because I think it only need a source to update.
But none of this works. Only change is that when SD card is inserted there is no "Mount error" but "Metainfo CRC error".


Any help? Any advice?