5d classic problem

Hi to all.
I have a problem with mine 5d classic. It stopped shutting. My back LCD display is illuminated but nothing on, print led and card writing led is always on and those three things doesn't shut down, only can be shut down if the battery is out. When I turn camera on upper display works (all functions work) and shows all functions except remaining picture count. Af works fine and locks but the shutter is not working. Tried to reset it with main buttery and small clock buttery but still the same. I can't enter in menu to reset the camera settings. Any ides?
Can the cf card slot be the problem?

If you've tried another fully-charged battery & another CF card there is not a lot left you can do other than send it to a repair center. If you're suspecting the CF cardslot, shine a decent amount of light in there and have a look at all of the pins, it's possible for pins to get bent and also possible that bent pins could touch other circuitry which would be a bad thing...

thank you. i've ordered another buttery so i'll see for few days. only with change of cf card the problem rest the same.

this doesn't sound good, could you keep us informed of what happens when you get your new battery?

battery arrived, and changed cf card pin slot but still the same. ASAP i'll send it at service to see what circuit board is damaged

Did you take the lens off and check to see if perhaps the mirror fell off?

Canon still servicing 5dc? That's good to know as I just picked one up