What contact could be crushed?

Question

Keyboard

Notebook Acer Aspire v3-771g. Actually there was such a story. The other day, my native keyboard died and, without thinking twice, I bought a novelty and replaced it without problems, and then they began to have fun. I decided to install it myself, especially since there were no problems with collecting and disassembling the laptop for cleaning. The keyboard was replaced at a time, and then the fun began. When I assembled the unit, it did not want to turn on (the button burned out for a second, a deaf short beep and silence was heard from the bowels). In an attempt to figure out what was the matter, I again disassembled the laptop, tried to turn it on in this state, it worked: I checked all the contacts, including cooling and power. I started to collect it turned on (although I can’t do this, I understand.) I set the bar with the keyboard, pressed it down so that it entered the grooves and the laptop turned off. I thought what contact I had passed. Turned it on again, approximately determined the point where the computer turns off. I removed the keyboard, but pressing on this point (any contact, microcircuit in the area) nothing happened. Only when I put the keyboard in place and clicked on this point, the computer turned off. However, if you do not tighten the motherboard and keyboard with central screws, everything works without problems. As soon as I try to screw up these places, the computer turns off again and no longer starts. I didn’t try to put the old clave back, since it’s unlikely that it will change anything (the cables seem to be the same and the substrate goes under the clave, but it didn’t change. Actually, the question is: what can it be? and is it worth urgently running to the service? As soon as I try to screw up these places, the computer turns off again and no longer starts. I didn’t try to put the old clave back, since it’s unlikely that it will change anything (the cables seem to be the same and the substrate goes under the clave, but it didn’t change. Actually, the question is: what can it be? and is it worth urgently running to the service? As soon as I try to screw up these places, the computer turns off again and no longer starts. I didn’t try to put the old clave back, since it’s unlikely that it will change anything (the cables seem to be the same and the substrate goes under the clave, but it didn’t change. Actually, the question is: what can it be? and is it worth urgently running to the service?

Answer 1

Sounds like a problem with the motherboard. When the screws are tightened, the motherboard bends and either something shorts out in it, or the contact disappears.
It should be taken for diagnosis.