Canon powershot sx30 is says there is no memory card in the camera when there is. Tried many different cards and none are locked.

SOURCE: sd card error on canon powershot s3

I get a memory card error everytime I insert a memory card. They are not locked and I have tried 4 different memory cards and nothing works. How can this problem be fixed?

SOURCE: card locked

Have you tried looking at the memory card? Sometimes there is a switch on the card itself that slides up and down to lock, or unlock the card for usage. Hope this helps! (It should be white, and a semi-translucent plastic.) 

SOURCE: Camera reading memory card error, cannot get it to work. Tried removeing the card and replacing batteries. Checked and it is not locked.

try formatting the card once on a pc and then plug it in your camera....if that does not help either, you'll have to try a different card.

CameraR

• 4738 Answers
• Posted on Jun 07, 2009

SOURCE: Canon camera won't accept SD memory card

It's a good bet that anything 4GB or greater is a SDHC card (look on the card, see if SDHC is written there). Your A530 was designed before the new SDHC format came out. Sorry, but your camera will not recognize this type of card. Recommend instead that you get a 2GB standard SD card. They're relatively inexpensive these days.

SOURCE: Memory card error message

Cards are coming in different formats and it might be possible that you brought a card which is not suitable or functional with your camera. The other reason could be that we are having options to lock our memory card in digital camera and you might have taken out your earlier card without unlocking it. The system might be broken from inside and this could be a reason that you are still getting a message that memory card is locked. It seems possible based on problem you are sharing.