Originally Posted by Tom Frank
You might see a pin mechanical problem but looking into the card slot with a flashlight. It's possible to unsolder a couple of "legs" on the card holder and bend it open for a better look, but it's also possible for the minute card latch to spring loose doing this, never to be found again.
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?