The adapter that comes with a micro SD from SanDisk (the co-inventors of SD!) has only worked once in my Advent card reader, nor my TheBug DAB Digital Radio but does in a colleague's Jessops card reader.
Can anyone advise on a micro SD to full size SD adapter that works reliably?
Both of my Sandisk adapters work fine, Id suggest getting a replacement under warranty before spending money on something else.
the fault is likely to be with the card reader - not all card readers are created equal. if it reliably works with your friends .. then I'd be looking at getting another reader .. maybe one like his?! 😊 err I should add a comment about which PC you're using these readers on too .. I'd be testing them on another PC as well 😊