Yoko.
One or several of the experienced 737 pilots that have posted along the line of pilots fault.
Said first thing is to hit the cut out switches - not trim to a neutral, them kill the switches.
These comments were made before the simulator deficiencies were made. So these pilots also could have hit the switches and found that it was too far out of trim, for manual trim wheel operation. So what to do now when you expect the wheel to move but it will not move?
You need to maintain power and pitch and your out of trim - with a frozen trim wheel and a few distractions going on. Do you start the "Yo-Yo" procedure at what is a low altitude or turn the switches on to try the trim?
Question - If the column trim switch is held trim up THEN the cut outs are turned back on, would it trim or does the column switch need to be "reset" to neutral then back to nose up?
Why would you turn the cut out trim switches back on, if you were not intending to trim?