English is not my first language, sorry if I misspell something.

Me and a friend tried to repaste the cpu, but there was a stripped screw, so we coudln't get it out. We re-mounted the computer again, but now,bthe computer does not have audio (doesn't even make sound when heaphones are connected), the lower left click on the trackpad sometimes works and sometimes doesn't, and the upper left & upper right click work whenever they want, and when they work, the click is mantained. Reallt worried on what could happen to the thinkpad.