oskar
I'm using Navcore 9702 in external memory expansion card (SDHC) in GO 920, GO 750 and even in a ONE v3 with SD and it's going well.
I do not know if your device has received a hit or something has happened that makes it work wrong, in any case I understand that you should start from scratch with the software.
Save the contents of the card on the PC and format the card (slow FAT32), download the navcore, it is not going to be that the one you are wearing, for whatever it may have been annoyed, copy the new one, complement the installation with mapsetings, what you had custom etc and try to see how, it will not take you long .. With this you rule out that the problem comes from the software / card.
Reset before starting with your card "restored" of course.
regards
Regards
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