EOS 66 works ok without film

how to video

I'm afraid you're out of luck. The camera does not have any memory to store photos. You can take one photo and look at it on the screen to see how the camera works, but this is primarily for demonstration purposes. Shooting without a memory card is like shooting an old film camera without any film loaded. You can go through the motions of taking a picture, but nothing is stored permanently.

I'm afraid not. The camera does not have any memory to store photos. You can take one photo and look at it on the screen to see how the camera works, but this is primarily for demonstration purposes. Shooting without a memory card is like shooting an old film camera without any film loaded. You can go through the motions of taking a picture, but nothing is stored permanently.

The camera should operate perfectly fine without a lens. It should also operate perfectly fine without film (other than for not taking any pictures, of course).
I know this is stupid, but make sure the batteries are inserted in the proper direction. Then make sure the film advance mode selector around the shutter release button is not in the "L" position. L is for Lock, S is for single-frame, and C is for continuous.
If you need a manual you may download a copy here.

If your film was TOTALLY blank then it's been bleached due to a processing error. By totally blank, I mean that there are no frame numbers or other film markings on your blank film. Otherwise, you simply have an unexposed film.

First, operate the camera with the camera back open, hold the camera up to a bright light and operate the camera as you look into the back of the lens. If you see a brief bit of light coming through as you operate the shutter then the shutter is admitting light into the camera and so you should have got some kind of an image unless you failed to correctly load the film (very common).

Unfortunately, there's no way to tell unless you try another roll of film. Once the film is loaded, turn the rewind crank gently to take up slack film and take a few pictures; each time you advance the film the rewind crank should turn a little. If it doesn't then the film has not been correctly loaded as the film leader has not engaged onto the take-up spool. If so, open the camera and re-engage the film. If it clearly has engaged, then the take-up spool is failing to rotate when the film is advanced: try taking a few shots and winding on the film with the back open. If the film is not advancing then you have a faulty Lomo. This is extremely common as it is a plastic toy camera with atrocious build quality and materials and is the FishEye is only designed for paltry ten rolls of film lifespan.

A final check for film which has not advanced through the camera is if the rewind is extremely short when the film has finished.

I don't have any ideas on why the camera is not shooting, but you can view or download the instruction manual here.

The camera has a capacitor to hold a charge for the shutter and the auto focussing modes. Usually when they get ten years and older they dry up and crack open. When that happens the camera will not operate

Jammed Advance motor. Unfortunately, there is no way to reset it or fix externally. Will need service.

My daughter took the camera to her photography teacher he was able to load the film by wrapping more film around the roller. It's not as easy to load as my Canon. I thought we had put plenty of film around it already. Oh well, it's working anyway.

Check your mirror lock up switch. This function is used for long exposures locking the mirror in the up position to reduce vibration before the shutter is released, but you will not be able to use the view finder.