I've put in 2 new memory cards and when i turn on the camera I get a message: "memory card is locked"

SD cards have a slide switch along one edge. The position farthest from the metal contacts locks the card, protecting it from writes. The position nearest the contacts unlocks the card.

There are several possible causes for "memory card locked", "memory card error", or "no memory card". The most common cause is having the tiny slide switch on the side of the card in the wrong position. But, if you've checked the slide switch, the internal switch in the card slot may be jammed by a grain of sand or gunk. Here are troubleshooting steps for this problem. Recommend the toothpick fix for your particular problem.

There are several possible causes for "memory card locked", "memory card error", or "no memory card". Troubleshooting steps for this problem are listed here.

There are several possible causes for "memory card locked", "memory card error", or "no memory card". The most common cause is having the tiny slide switch on the side of the card in the wrong position. The second most common is trying to use a 4GB or higher SDHC card with an older camera made before SDHC format came out. There are also other common causes if the above didn't help, with troubleshooting steps for this problem listed here.

hello sir can you tell me abut you cameramodels and date of buy and memory card size and which company?

If this camera uses SD cards then what may be happening is that the little lever that drops into the slot on the side of the card to indicate locked or unlocked is jammed in the locked position. If you shine a flashlight in you might be able to see where the pin is.

buy a new card..

This error message means that the card is corrupted or formatted for another digital camera. Turn off the camera. Insert a new card or format the card.
Try to format the memmory card using a card reader and the PC this should solve your problem if not you have to replace the memmory card.

on the side of the card you have a little button and it has 2 position : lock and free. if the button is on lock position that may be the problem! so please check it and put the button on free position and try again!

Hi there, welcome to FixYa.

Let's work on the camera first.
1) Turn the camera off and remove the battery and the card.
2) Put the battery back in without the card and turn it on.
3) Turn the camera off and insert the CF card.
4) Turn the camera back on again.
See if that takes the message away.

If it doesn't leave me a comment and we go to step 2.
If it does, thanks for coming to FixYa.

Rob