Originally Posted by ginetto
The card holder seems attached well on the circuit and the card seems ok. I tried to see inside the card holder... well, it is not easy to see something, even with a magnifying glass and a light.
I noticed another abnormality. Normally, without the card the light on the camera flashes slowly, while in this case the light remains on and nothing happens if I press the shutter key.
Does it mean anything for you?
It sounds like the camera is giving a false indiation that a flash card is inserted when it isn't. That's liklely the source of the problem, but finding what is causing it is virtually impossible. It could be an internal fault in a USB circuit component, not necessarily in the card holder.... probably not user repairable.