I have the same problem
But stroking won't help anymore
sometimes they do work all I don't know why (maybe when I move the laptop)
Did you find the solution ? Do you think replacing keyboard will solve ?
so my keyboard is acting strange..
some keys, mainly "f6 5 6 r t f g v" are not working all the time...
they require multiple strokes to work, sometimes a lot of strokes
i am wondering what the problem is... could it be from heating?
or some contacts unsoldered from the heat?
i tried shuting it down and holding the power button for 60 sec but that didnt fix it...
my laptop model is acer v3-771g