Originally posted by larryinlc Yes, still does the same thing
Is either card readable by another device?
What you describe is often the result of the card having file system issues. The cause is often traceable to not doing a proper "eject" (unmount) before removing the card from a computer's reader or similar.* That might leave the residual stuff on the card that makes clean read/write impossible for your camera.
The solution is to reformat the card, but the camera won't let you and the computer operating system format utility is often not a good thing to use (long story). There is a safe format utility designed for SD cards available for download from the SD Association Web site that users on this site have had good success with.
SD Card Formatter - SD Association
Format using the utility and repeat the format in the camera.
Steve
* May also happen with direct USB connection to the camera if cord is unplugged without an explicit eject/unmount. This may need to be done separately for both cards if two are in the camera.