The [Memory card locked] message appears on the screen
14-Mar-2016
8200709900
Solution
The SD memory card, SDHC memory card, SDXC memory card or Eye-Fi cards have a write-protect tab.
If the <Write Protect Tab> is in the locked position, the following screen appears.
During shooting :
If 
[Memory card locked] appears in the upper portion of the screen, and 
[Recordable shots] or [Elapsed Time] shows [0]*, shooting is not possible.
[Memory card locked] appears in the upper portion of the screen, and [Recordable shots] or [Elapsed Time] shows [0]*, shooting is not possible.* The above indications may not appear depending on the model of your camera.
may not appear depending on the model of your camera.During playback :
If you try to delete an image and [Memory card locked] appears in the lower portion of the screen, the image cannot be deleted.
If [Memory card locked] appears on the [LCD Monitor] of the camera, the <Write Protect Tab> of the memory card being used is in the locked (downside) position, so you cannot capture or delete images.
the <Write Protect Tab> of the memory card being used is in the locked (downside) position, so you cannot capture or delete images.To unlock the tab, slide 
the <Write Protect Tab> of the memory card upward.
the <Write Protect Tab> of the memory card upward.