3DS No sound! (With or w/o headphones)

So a couple of weeks ago I turned on my 3DS to find that the audio wasn't working. Even with headphones plugged in I couldn't get anything. I had just played it a few days before with no issues. I've tried disassembling it and swapping out the volume switch with no luck. I'm not sure what else to even look for as I've found no support for this issue.