Having tough time removing screws

[basketball762]

Hi! I am right now trying to remove the back cover of my MacBook Pro Early 2011 model. The issue is, I having a very hard time removing two of the screws. I have taken eight out of the ten screws out but two of them are just being really hard to get out. I know I am using the right tool because I bought this tool kit from amazon which is specially made for removing your macbook back cover. One of the two screws that I am trying to remove is losing its "footing" and what I mean by this is that when I place my screw driver on the screw their is no threads on the screw. How can I get these two screws out of my macbook? I would hate to take my computer to Apple and pay them a lot of money for something that I feel like I can do for free. Also sorry if this was confusing. This is very hard to put into words haha,

 

[robgendreau]

Sounds like you may have stripped the head of a Phillips head screw.

Sometimes you can get a grip on it with the flat blade of a flat head screwdriver, maybe with a little bit of rubber beneath the blade. If it's really hosed then you may have to get a screw extraction bit of the correct size to get it out; check your local hardware store. Or maybe gunsmith sources.

There are some other solutions, but they are even riskier, like using some heat or drilling it out completely.

Rob

 

[yusukeaoki]

As said above seems like you smashed the top of the screw heads.
Mine was not hard to remove.