I recently bought a used OG 3ds and the top screen looks fine most of the time, but with hand pressure the screen darkens and sometimes also looks red-ish. This sometimes also happens at certain angles (not always though). I am aware that this problem could be caused by ribbon cables. They don’t look damages so I tried to re-seat them and the problem still occurs, even though it is not as bas as it was. Did anyone had the same issue?
I had a similar issue when I was changing out the top LCD of an OG 3DS. The top lcd was not so bright and flickering. I never put any pressure on it though…
None of the buttons or touch screen worked either, except for the power button. Found out the solution to that problem was to clean around the edges of the touch screen, it maybe gets triggered and disables nearly all the other buttons from working when there’s grime touching it. After cleaning it up and rehousing everything i had no issues.
I will say the FPC cables were very delicate, so that could also be an issue youre coming across. I only had to replace the LCD because I accidentally punctured its flex with tweezers when unplugging the cable to remove the motherboard, and the camera FPC had started to tear when coiling it up to put it back through the hinge