I use an EasyOut tool.

There are various sizes perhaps you can find one small enough to work.

I've seen a special liquid product for stripped screws at the hardware store. I've never tried it myself but you apply it on the stripped head and after it cures a bit, it's supposed to help you unscrew the thing.

Here's the product that I'm talking about

ww.bison.net

If the link doesn't work for you, google it, it's called Bison Grip or Bison Screw Grip.

Another solution that I've seen being sold (again, haven't tried it) is a set of special drill bits.

The drill bit ends with a reamer on one end and a screw remover on the other.

And I quote:

"The reamer bit drills out a small conical hole in the damaged screw head, while the screw removing bit digs into the sides of that hole and pulls the screw out."

It's something like this piece from Amazon (Alden-8440P-Grabit-Damaged-Extractor) though there are many alternatives:

www.amazon.com

A method I use that works universally is a variable speed reversible powered drill and a steel drill bit. You can get screw extractor bits too, but in a pinch, even wood drill bits work.

Just power the stripped screw with a bit in reverse; it eventually cuts enough grooves to pull it out, if it slips too much just work it out enough to use long nose pliers.

For some really bad screws, it can help to first drill forward into the screw to cut a few grooves, thereafter reverse the drill.

Cutting a long groove with Dremel's thinnest emery cutting disc creates a simple slotted screw head, but you can supplement it with the drill method to get enough clearance to keep from cutting the surface of your devices chassis.

The above method may work on a Dremel tool, but drills always work, they have low speed, but a lot of torque.

I was desperate to get the failing fan out of my MacBook pro 2009 13". The screw stripped immediately (are these things made of pewter?!). What worked for me was taking a thin flat head and carving the screw in half circles counter clockwise until it came loose. The metal is that soft, it eventually loosened up and came out!

Put a piece of a thick rubber band in the screw hole and then use the screwdriver, pressing down so that the screwdriver engages the screw. This works good on small stripped PH or slat head screws. BEFORE starting, read the following>>

NOTE: You want to be sure to get the screw head and the screwdriver lined up BEFORE inserting the piece of rubber band. I use a very fine line permanent marker on the top edge of the hole where the screw is in order to get the orientation correct. Then mark the piece of rubber the same way. I use narrow, fine tweezers to insert & adjust the piece of rubber to line up with my screw hole marks. A long sewing needle can help you fine tune the alignment. This way, you'll know exactly how to line up your screwdriver head AND avoid chewing up the piece of rubber band. And with a little patience, the screw will come out.

All these links are great, I need to get a Dremel tool and do that, I hate stripped screws.

What I mainly do is try to use a magnet and maneuver tweezers into the side and pull it out.

i had the same problem and i fixed it using a superglue. drilling a little hole in the screw inserting a toax and filling up the hole with superglue.

I've been working at what I thought was a stripped screw in the right fan on my logic board (MB Pro A1150) for over two weeks now. I just got it out & discovered that the screw isn't stripped; the hole is. Anyway, I got it out by using my micro screwdriver as a lever under the tab of the fan that the screw was in & I pushed down on that until I had enough room to place a razor blade under the other side & then I began unscrewing the screw with the torx screwdriver while I held tension on those with the other hand, & it began to come up bc it used the razor blade as a thread. I have yet to be able to get the one on the other side out, but I was quite ecstatic to get this one out! I'll keep trying on the other side though so that I can finally change out the logic board since this is keeping me from doing so at the moment. Hope this helps someone. ~Jess

Left handed drill bits are a life saver in these instances, especially for the small screws that come out fairly easily once you get a grip on them. Just drill slowly and wait for it to grab. Never had much luck with extractors.