Audi 2G MMI Basic Plus (Navi), constant reboot after upgrade

[wokfm]

Hi,
Audi A6 / 2007-8.
The MMI system is 2G (mono), with Navi and 6 disk changer.
In order to prepare for a retrofit of a Visseo MOSTO Bluetooth, a software upgrade was performed, as it was showing C6StdNavi_0410 which was too low.
The SW Update was S1-C6-EU-K310.

Now, the system restarts every 5 mins (almost exactly 5 mins), and the Sat Nav no longer functions at all, nor will it read any disk. The reported error appears to be an application upgrade problem.
CD and radio are fine (apart from rebooting every 5 mins, and dont' always come back on the same station/channel etc)

It think this looks like the Navi unit is basically not booting.
I believe that in this system, the Navi unit is the master, as isolating it (MOST bypass cable), causes nothing to boot.
There was nothing wrong with the Navi unit prior to attempted upgrade.

I'm struggling to find a expert afermarket Audi MMI speclialist, so hoping someone can help.
I can provide error screens/logs/ F/W versions if necessary, and have Can-HEX cable and VCDS 12.10
From memory, the recorded error in the InterfaceBox Error screen is SVM_Syncro


(PS Viseeo-MOSTO not fitted yet),

thanks for any help, or recommendations.

[wokfm]

Just adding the following : (note that CD and radio actually working fine)
Control Module Part Number: 4L0 910 468 A
Component and/or Version: J533__Gateway H06 0060
Optical Bus Diagnostic : Standard
Controller Electrical Optical
19-CAN Gateway OK OK
07-Control Head(Std Navi) OK OK
0E-Media Player 1 ERROR ERROR
1E-Media Player 2 OK OK
47-Sound System OK OK
56-Radio ERROR ERROR
37-Navigation ERROR ERROR

[NHN]

Did you have the car running when it was being updated?

[wokfm]

Yes - the car was running as it upgraded.

Some more details : upgrade disk was 4L0998961 (1 of 3)
I've done some digging around the SWUPgrade logs, and it looks like gateway is showing the error, despite the fact that it seems to work perfectly (for 5 mins and it's the Sat Nav that won't initialise or read disks. It reports a problem on the SPN - does anyone know what that is:
See below for the logs walkthrough I captured (the final file won't attached and shows download error 0xffff)

image3.jpg
image4.jpgimage6.jpgimage7.jpgimage8.jpg

[NHN]

It looks like a non complete upgrade tbh, can you force a fresh upgrade & see if it takes better.

[Guest 2]

4L0998961 are mmi 2g high discs. you have 2g basic.

[NHN]

Good spot, my only excuse is the poxy flu I've had for 2 weeks now, argghhhh