If you have a memory card equipped with your digital camera, camcorder or cell phone, when you connect it to your PC via a card reader or slot but it comes out with card locked error while you attempt to access files in it. Detailed symptoms about this kind of errors include:
- You receive the message "Memory Card Error" and "Card Locked" underneath it.
- You can’t format the card properly.
- Go to the Properties, it says 0 bytes.
Perhaps you'll think the memory card is corrupted or damaged, however most of the time it isn't. It’s probably the tiny piece of trick on your card reader (or card slot) that playing a joke on you.
Check the card reader or slot you are using, pay attention to the little button on the side (it is called lock tab usually with white color). You are able to switch it to two positions “Locked” or “Unlocked”. You can see the photos below more clearly.
Memory card "locked" position
Memory card "unlocked" position
See? You must have accidentally switched it to the “locked” position when connect it to your computer, thus the card error occurred. The solution is simple: switch the little tab back to “unlocked” state and try access it again. The previous locked error message should be eliminated.