PNY optima SD HC 4GB card will not read
4GB PNY optima SD HC card was sent from family to add additional pictures to for a grandparent's new digital frame. Card works fine in frame, but cameras and card readers to not recognize it. It is not locked.
Electronics - Others - PNY - 4GB Secure Digital High Capacity Memory Card
Answers & Comments
Try putting a tiny piece of scotch tape over the lock slider. See if that works.