Try simply unlatching the top and try to push the top back while standing on the seats
you can work the electric top button with a pole while standing on the car seats if that will be of any assistance
not sure that will work — if you have no electrical power assistance at all
worth a try
You should test to see if it's the switch. It'd be an easy fix if that's all it is. After mine started acting up, I took the switch out and cleaned up the contacts and it started working perfectly fine again.
Chris 's idea about trying to clean up the switch ia a very good one