I have extracted the zip successfully without error, so it should be ok.
There is a TU05 folder on the original disks, wich contains a file: LOADING.KWI. I think that is the firmware. On the HDD I found a partition with a folder containing a similar LOADING.KWI. The file version on the HDD is VA05100L. The version on the 2015-2016v2 disks it is VA05113A. That's why I think it is the firmware, but I'm not sure how to upgrade it. Maybe we only need to overwrite it on the HDD. On GEN6 it is a standard process, as far as I know.
Offcourse we should overwrite it !!! Because you need to delete all data from MAP partion of your Navi HDD and then put all data from this update !!! How do you update it usually ? But we are talking about different things - you're talking about Navi programm "firmware", and i'm talking about firmware of head unit... Is MD5 now okay for both parts of update ?
