Imagine that - a beautifull day, you are sitting comfortaby on the couch, you are opening the laptop lid aaand one of the hinges cracks... What a disaster you think, you have to pay outrageous cost for repair in the laptop service shop... Buuut there is a quick fix for the problem, all you need is a screwdriver and 1 hour of your time. :)
Dissasemble the laptop. Locate the broken insert for the metal bushing which holds the hinge and remove it. Drill a small hole in the center of the cracked plastic insert.
Step 1: Metal bushings
This is the metal bushing which is placed into insert on the plastic case of the laptop. It is almost impossible to glue it, because some laptop manufacturers use special plastic for the laptop case, a plastic which does not stick with most glues, also there are a lot of tension in the place where the insert is located and after several times you close and open the laptop lid, the hinge base will crack again. Notice that this little thingy have thread from end to end.
Step 2: Drill holes and refit bushings
Put the metal bushing back to its place and screw it with a small nut from the bottom side of the laptop. I recomend using apropriate washer because if the nut have small heat it might go right trough the hole.
Step 3: Assembling the case
Now screw the hinges on the repaired metal bushings, assemble the laptop and you are done! Voala! Now you saved a lot from expesnive laptop body cases and repair fees!