Memory card locked

There is a tiny button on the side of the card - so small you can hardly see it. Just slide it up and voila All is solved.

It is frustrating as there is nothing in the manual bout this and the onl line assistance wants to charge for 20 seconds advice Mine is free dorothy

I FIXED MINE! First, let me preface this response with a "no, really!"... okay, here goes.

My wife has a PowerShot SD800 IS that has functioned flawlessly for 4 years... until we were on vacation on Long Island this past May. A week or so into removed the SD card out to look at pictures on a friend's computer, and when we put it back in the camera, we got the "Chip Locked!" message. Problem is, the chip is an EyeFi card WHICH HAS NO SLIDER LOCKING MECHANISM AT ALL! Even using a different chip resulted in the same "Chip Locked!" message. After scanning Google for user-suggested fixes, including removing both the removable and internal battery (I took the camera almost completely apart and could not find an internal battery... but it's gotta be in there somewhere) and letting the camera do a "hard reset," nothing rid the display of the "Chip Locked!" message.

So, I got to thinking... the camera determines if the chip is locked (if the chip has a lock) via a sensor associated with the little gold connectors on the "business end" of the chip. Applying the solution logic from another user's post (their lens failing to operate, due to sand creeping into the camera), I thought "what if there's a grain of sand on the "chip lock" sensor/connector in the camera's SD card slot. So, I took a can of air, gave a quick little blast in the slot and "Voila!" no more "Chip Locked!" message! Everything works perfectly again, any chip, full function.

Sometimes it's the most obvious thing that is the hardest to see! Give it a try...hope it works for you as well!

Remove the card and slide the lock on into the opposite (locked) position and then back again and try in camera. if that does not work, format the card in your camera.