I see so you aren't looking to "Hard Reset" it, you are looking to get it to turn on.
First, if the laptop is under warranty still, contact the manufacturer before opening it up. That might void the warranty. If it is out of warranty already then you can try using a screw gun but I would be very careful as they are a tad powerful and can strip the screw or the location where the screw goes really easily. Perhaps use it only for the first second to loosen the screw initially and then use an handle held screw driver.