That sounds like corrosion. Did you spill soda over the buttons or anything? The flimsy plastic sheet boards like they use in here are really friggin succeptible to acid corrosion, citric accid does the job fine enough apparently. I killed my old cheap notebook in the same way back in the day. No cleaning on earth will help you once the ‘phantom signals’ appear i’m afraid.
All in all a good instruction. However, mine came apart slightly differently (the l/r buttons for example are a single unit apparently and stay on themeselves, i also didn’t have to remove the flat cable that connects the touchpad). However, lifting the top shell off in the first step proved a lot more difficult and finnicky and i had to be more forceful than i would normally feel comfortable with. I also had to try really hard to get the touchpad back in place afterwards and only managed by again, using more force than i would have liked when re-inserting it. All in all it worked and i could clean the thing just fine, yay for non-sticking-buttons. However, i would reccomend at least putting in a note that the insides can slightly differ and that you sometimes have to be a bit more violent with the renitent top bit.
Mine was also really really resistant to being pried open. In the end, i did my best to loosen the entire gap at least once, then inserted along the middle bottom and used more force than i would have been comfortable with. The plastic on the edges is slightly shot now and it’s not as smooth a grip-feeling anymore, but it came apart fine and I didn’t break anything important. There is just a lot of surface for a friction fit like this and the joysticks keep pulling it back down, which in combination makes it really resilliant. In my case it also was exuberated by a minor soda spill along the right handle which ‘glued’ it together, and i imagine that can also happen just with use and ‘hand cheese’, especially on the outer edges. There is a lot of surface area to stick together there.
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