It should work. You take the copy as you have. Follow post 889. Just delete the contents off the card after taking a copy. Assuming nothing untoward happended in your download copy across and complete the steps in 884. Don't do anything else. You might need a reboot before putting the card in. Failing that I'd try to do the download again. The directory structure is the same, sure you haven't got something one level further down etc.
The technical stuff kicks off on post 501 by late January they had sorted it out, but those instructions cover cloning onto a new card which you don't need to do. That tells you about that sector. I'm sure people have done your release.
I see we are getting cross posts, I'd agree with one up.
/maps/EEC/EEC_WLD/OVERALL.NDS is tied to the card that it first appeared on.
In order not to shaft the original card that came with the car, I used a second hand ebay card and keep the overall.nds that came with that card for use on that card alone. So long as you don't mix these up, both original (untouched) and ebay (updated to latest maps) cards work in my car (MYE2016, H24 MIB2).
No need to reformat between versions, just take a copy of /maps/EEC/EEC_WLD/OVERALL.NDS, delete everything off the card, copy the latest map files over, then overwrite /maps/EEC/EEC_WLD/OVERALL.NDS with the copy of the original that came with the card.
Least it's working now

... not so sure why it wasn't on your other card thou unless you never did a complete delete on that. Unless it was something to do with how that card was paired to the unit. That's my understanding is that the visible contents are standard on the same serial number of the release on card but the hidden sector isn't. That NDS file copied tallies with the series registration in the unit which also happens to be the top level data base index of the maps. That index just happens to be swappable between releases. That bit of information was found by the guys that did the workaround from publicly available copyright notices on the database file structure mentioned way back in the thread, I think the guy found the workaround by trial and error but then found why it worked.
Hello.
I have two original cards 3 and card 4
I have only tried to work with the old card 3 and it is card 3 that works now.
I have at no time formatted the card as one of you wrote I should, just deleted it.
I don´t know if I was told that, so it could be understood before.?
Method that does not work:
Deletes everything on card 3 and copied the entire "folder" folder from version 0915 over plus "/maps/EEC/EEC_WLD/OVERALL.NDS" from card 4, which was my active card.
There was an error that it could not find the database.
Method worked:
Deletes everything on card 3 and copied all active card 4 onto card 3.
Tried card 3, with card 4 data in the car and it worked perfectly.
Then I deleted card 3 again and copied the entire "folder" folder from version 0915 over plus "/maps/EEC/EEC_WLD/OVERALL.NDS" from card 4, which was my active card.
I'm now running version 0915 on NAVI SYSTEM PAGE LEON - 6P0