I've read the manual etc regarding this but still a bit confused as to why SD cards aren't working in my Amunden+ unit?

I've tried various cards (4 in total) of various gig, 8,16 and 64 new and used ones and every time I put them into the slot the message reads "SD card error"

Anyone have any idea?

Have you formatted the cards correctly? Should be FAT32

I wasn't aware that was needed?

They work perfectly fine in my partners Golf!

I'll look into it though thank you.

If they work in the golf but not in yours, I reckon your card reader is ronnied (or the unit itself).

That's what I thought but I'll look into the formatting first then see if my dealer can sort anything