I just bought a SansDisk 2 GB memory card for the Nikon D70. When I inserted the card, all I got was a "CHA" flashing in the display. When I insert the card the green light lights up. However I can't format the disk and the camera won't take pictures. I took the card out and inserted three previous cards that I used to take pictures. The same result. I get a blinking "CHA" in the display. I took it to a camera store and the guy there took a look at it. He didn't understand it either. My battery is fully charged. Do you have any idea what might be causing this problem? Jim Heitzig, Aptos, CA
Try to clean the contacts of the memory cards and, mostly, of the memory card bay of the camera. Use a dry anti-static fabric (e.g. what we use to clean eye-glasses). DON'T use any liquid cleaner of anything like that!
This is a card reader problem. It can be caused by several things.
It could be:
Bad card. Try the card in another camera
Bad or bent contacts in the camera. This is a Nikon service Center fix.
Be sure the card is securely position in the camera. Don't force it, but it should feel seated. Sometinmes, turning it off, waiting a minute and turning it on clears the problem.
If none of these are a solution, then it could be the ribbon cable between the mother board and the CF slot. It's a common problem that many people have had. That's also a Nikon fix.
Let me know if any of this helped.
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I was downloading pictures from my D70 when an error message came up on the viewscreen: "this card cannot be used" and the error message "CHA" began to flash.
I have the same exact problem with the D200, and cleaning the prongs didn't help.
My D70 has the same problem...I'm gonna try Sunriser's solution
I tried cleaning. still not working. any more ideas out there? thanks!
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