Bronica SQ - AM Not Firing

Hello, I bought a new Bronica SQ-AM two days ago. Yesterday everything was fine, but today I'm having problems.

The film is loaded in the camera, but I can't take pictures. I have the same problem in multiple exposure mode.
(I tried all three backs.)

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Video 1: I tried in multiple exposure mode with the back removed, but it didn't work.

Video 2: I tried with the film loaded in the back, but it didn't work.

Video 3: It still doesn't work with the back removed. When I press the drive button with the back removed, it makes a sound like it's continuously winding the film, and it still doesn't fire.

Additionally, when I press the drive button, the film doesn't advance steadily.
All my batteries are new, and I've tried alternative batteries.

I would appreciate your help, thank you.

Send it back.

Make sure the dark slide is removed. Also make sure the batteries are in good shape.

Should fire if you have film in the back. Or, with the back empty it should fire in multiple exposure mode.

Camera requires 7 batteries. 6 for the motor and 1 6V for the shutter.

That camera is pretty old, looks pretty used too.

I had SQAi bodies with motors. Sometimes would do something funny but it was always me. I think you may have a defective camera.

UPDATE: The repairman looked at it and said it needed servicing, that it wasn't a simple mistake, and that the inside of the machine needed to be opened. I returned the machine.