Ah-HA! I got it working! Smooth as silk now.
And I did not have to remove the entire top cover. yay
So, the film advance assembly is the sole mechanism which governors the frame counter and lock.
There is no hidden catch or wheel which reads the film.
You can test all the normal functions without film loaded.
The normal operation should go like this:
Start at 0.
(optional) Load film. Advance film so line match up with marks in camera. Close back
Press lock button down and move to left. (just left and rear of advance knob) Dot changes to red.
Advance to 1.
Cock shutter.
Aim. Focus. Shoot.
Advance to next frame.
...
After 12, the lock button will automatically move to right.
Advance film until leader is completely wound, and frame counter will reaches 0.
i did have to dissemble the rewind knob. (multiple times)
The first time I did it, the shutter button released and i was able to take exposures.
However after I reassembled the advance knob, the advance now grinded horribly and the counter tripped out after 10 or so.
I was not sure if I had the reassembly right. So I checked around and found this really good description:
From the top-down:
Winding Knob
Largest "Washer Like" piece (concave down)
Flat Spring
Other "washer like" piece (concave down, small internal collar up)
Coil Spring
Number Counter.
Also this:
"one more thing I did notice today: The top ring needs to mate with two shafts, the inner one that advanvces the film and the slotted one that advances the counter mechanism. These need to be at right angles to each other otherwise the top ring does not properly couple! Look at these two shafts carefully and you will better understand what I am talking about! "
However I was pretty sure I had everything together right. but I took it apart and put it back again.
Also, before I put it back, I was playing around with the flat ring under the number counter.
it has a tab on top that the number counter mates with.
it normally turns counter-clockwise, to turn the number counter.
But I fiddled with it and turned it all the way clockwise until the lock button clicked right.
Then I put the advance assembly back together on top of it in that state.
-After that, everything worked perfectly.
Hopefully someone else may see this.