Hello, recently my laptop's (acer vn7-792g) touchpad broke so I had to order a new one. The problem is that it came with it's metal frame (the little wings visible on pic 2) a little bit bent from transport. Since the touchpad seems to be extremely sensible to any kind of pressure difference, I've had to compensate a bit : in order to get a the physical "click",  I had to tighten the three screws that hold the touchpad down more loosely than before. They seem quite secure but just in case I still covered them with electrical tape to avoid them dropping and provoking a short somewhere (I mention this in case this could be a mistake I don't know about).

However the trackpad seems defective : randomly sometimes but especially after using the mechanical click (I think this is important), it'll start producing ghost touches, the mouse cursor will start moving randomly, clicking... However if I put my finger on the trackpad, it just stops and become immobile, until I remove it and it goes into a frenzy again. It usually goes back to normal in a matter of minutes. 

I want to assess whether this is related to the trackpad and it's bent frame or if it's the ribbon cable that's not connecting properly. Is there any test I could do (except buying new parts) that could point me to the right diagnostic? 

Trackpad ghosting issues : ribbon cable / connector or touchpad itself?