Solution If the [Memory card locked] message appears when you attempt to capture or play back images with the camera, please refer to the procedures below to unlock the memory card (hereafter referred to as ' card ').
1. Using a Card Reader or a Card Slot on a Computer to Download Images Use a card reader to save images or movies on a memory card to a computer without using Canon software or a USB cable.
The [Memory card error ] message appears. The speed at which images are written to or read from the memory card, or the continuous shooting speed has been reduced. Movie shooting stops partway.