How comfortable are you with electrical work? You can jumper the solenoid (if it is the problem) and get the motor up that way - but you need a conductor capable of the amps required. Did you try lifting up with the manual release fully out? Sometimes it does not work quite like it should...
Do not take that screw out completely or you may have some check balls and springs fallout and you're done!
Check out my thread how to replace the trim and tilt: