I’ve been having trouble with most off my sd cards that have worked for years. I ordered a batch of new cards and was checking them out. The little grey tit on the side is supposed to be pushed up or down? They came out of package in up position. I’m calling the up position the end that goes in camera with corner missing.


"The Heavens declare the glory of God;and the firmament sheweth his handiwork" Pslam 19:1