I'd be grateful - I've pretty much done everything you've just described to no avail. I've ordered a new 32gb stick off amazon, to see if something never before seen by the car helps, but I'm not hopefull. I have a weird problem - it started when i updated the maps a couple of days after getting the car, which worked ok I thought - but then I checked in easyconnect again, and it appeared there were more map updates, so I downloaded, and put in the car - but at that point the "list of maps" in the car dissapeared. The car would at that point create the NDS stuff, because I got to look at the files on a PC, but then, after asking rlink helpline for help, and multiple NDS attempts, the car stopped writing those as well. So it's just getting worse, and it's not helped by the fact that I think my localish dealer isn't keen on looking after zoes any more, so giving the car to them for god knows how long is not a pleasant idea. They also only have 1 EV technician, so they are not allowed to do anything that involves isolating the battery - like giving us the BMS updates !!