happen to me too on the first, but i was luckier than you, i too the board on my lap and was able to put more strenght to unscrew all of them without damaging the others, and the first one still is ok so it put it back, but yea i feel you.
it a ****ty idea to use screw so small screwed by a robot at maximum strenght on a piece of gear you (human) is suppose to remove
