Hehe

) What-a-discussion

"he" used the WinZip on MAC, which is not bad I guess.

And used the same on PC too...
But it had nothing to do with unarchiving:
- I saw the folder (image) content on OS X, on Windows (with all the extra hidden folders), but the TV failed to find the update files
- When I did it on PC, it worked like charm
Standard FAT formatted USB stick on MAC (disk utility), tried with several pen drives, etc etc... Yes, sounds like "soul in the machine" or miracle, but that was it.
Incompatible GUID Map? I don't know...