Solution: Use a small one-word screwdriver to scratch little by little, if the screwdriver is not convenient to get out of the finer scratches (if coarse, for fear of continuing to slip silk). Just use a small knife to, little by little gouge.

Then there is a longitudinal scratch for an hour, with a larger than the original Phillips screwdriver unscrewed. When unscrewing, make sure to press down a little harder so as to increase the friction. Finally got it out.

You can also find a small nut than a small screw cap, and then go to the hardware store to buy a box of strong AB glue, according to the 1:1 blend of good after the nut bonded to your bad screw cap, the small nut in the middle of the empty can be full of glue, put dry with sharp-nosed pliers or a small socket wrench counterclockwise slowly rotate the force is not too big or to be deglueing.

If you don't have the patience or don't know how to processor, it is recommended to send directly to the after-sales treatment.

Expanded information:

Screws slippery screws are not tight tips:

First distinguish screws to be tightened things are what the material, if it is the timber class, the You can add a small toothpick in the hole of the screw, if the material is iron, you can flatten the screw.

If there are other screws, the screws do not tighten on behalf of the screws and holes are not the right size, you can change a screw; if there is no screws, you can screw the screw holes stuffed with a little tin, and then slowly screw.

You can also screw the screw in the screw hole pad some paper and other things to increase friction. Finally, you can also add a little glue into the screw holes, and then screw the screws in, and it will be fixed.