Heya! I need advice on how I can fix the R button of my 3DS. I was playing MonHun and suddenly stopped working; guess it was some dirt so I blowed it a bit, and now fuctions halfway -idk if that is expressed right, english isn't my primary language-.
Thanks in advance!
If blowing it out doesn't work (clearing a physical obstruction) the button itself is likely shot.
They're tiny-ass little microswitches. They can't really be cleaned or serviced, and if you've got the case open far enough to get them out it's stupid to not just replace them entirely.
They're replaceable fairly easily if you're careful.