don't wait, turn on, hit F keys then enter, after you hit enter reboot and see if that worked.
if not, you can also try this: Remove your battery and power cord, then hold the power button and press F12 for 60sec. release keys and power on as normal
(this is a hardware reset for these models )
OK I turned on my Acer aspire V5-122p-0408 touch screen and the Acer sign showed then the circle was turning then went black for a min. or two then showed the Acer sign again and now the circle looks froze. I push in the F2,F9,and F10 and enter but nothing happened to it what do you think I should do?