I rechecked mine and it goes this way:
1. Winder attached with switch
OFF and set to
125x. Camera is uncocked and set at X100 speed.
2. Both camera and winder have fresh, tested batteries.
3. Half-pressing on winder's trigger button turns on the meter, but does nothing. No advance, no cocking.
4. If I full-press, then, the action is
Wind - Shoot - Cock. I cannot separate those
three-on-one actions.
5. I have this done repeatedly without film, back open.
6. Then load a roll of film and it does the same. I load the film after winder attached.
I have read the manual, apparently there's nothing showing the sequence (that
Wind - Shoot - Cock). It just says about S and C mode usage, attachment procedure.
Well that's it.
Unfortunately, for me, the ME is too small to use without the winder.