There isn’t one for you. I’m not your mommy so I’m not sugar coating it here. If there is sticky materials, the unit needs to be disassembled, the board, screen keys and keyboard membrane as well as the rotary encoder All need to be cleaned with cotton tips and isopropyl alcohol, then reassembled. Nothing you’ve said so far indicates that you have the experience and skill set to do this without ruining the boX. leading you ultimately to a skilled, reputable electronics repair technician.
I’m trying to keep you from months of regret.
Funny you say that when Ive just finished reassembling the unit back. You dont know me and have no idea what Im capable of, but went ahead and made the assumption I had zero skills based on a single question about a product Id never used. It was nothing major as far as the button went, there was no residue of any kind, the only thing I noticed was that the switch click sound differed from the rest (see google drive video, the first switch (Home) sounds deader than the one next to it as well as all the others) and so the switch itself might be at fault. Its certainly not as clicky and probably doesnt push the button back hard enough in the fully assembled state. Theres also a dent mark on the button (see pic) implying something mustve been dropped on it. I just switched the places of the button assemblies and applied very little oil to it just in case. Now its much better and pretty much flawless, doesnt get stuck or feel weird upon continuous presses.
But sure keep thinking undoing some screws and disconnecting some cables is some skill warranting a 60$ tech bill who wouldnt even find a major problem with the unit to work on.
But Ive had other, more concerning findings that imply the unit mustve been taken apart before:
1) The screen is only fixated with 2 while having 4 mounting points, is this how its shipped, a factory mishap or should I take it the unit has been disassembled before?
2) Missing/mismatching chassis screws. One of the longer screws that holds the sidepods is missing and was apparently replaced with a random shorter screw that doesnt match with the other short screws (see pics).
If anyone has taken their units apart or can do it now to give me a heads up thatd be great.
For the screen, I found matching nuts and its solid now, no give at all.
The chassis screws work, its just weird and triggers my OCD.
P.S. To clarify, the missing screen corner 3 picture is for comparison, showing one of the 2 present nuts on opposite corners. Also, obviously I meant nuts, not screws.