I tried with my empty SD Card 2 GB and 8.842, same problem, with original ID from device taken....

Why you think 8.841 will work ok, some special reason, that 8.841 will work, even 8.842 didn't work, at all NC works ok, but when try to choose pre-activated maps, with created .dct files, it wont, and reports "these maps aren't for this device" ?