Clean the contacts of the SD card and check the contacts of the camera. Some foreign material could prevent the cards working. You can try another SD card to see difference. Simple thing but check also the SD card write protection is off (side of the card).
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Clean the contacts of the SD card and check the contacts of the camera. Some foreign material could prevent the cards working. You can try another SD card to see difference.
Simple thing but check also the SD card write protection is off (side of the card).