Chosen Solution
I’ve had a regular 3ds(US) for the past year or so and its been working perfectly fine, but when I got home today and turned it on all that happened when I pressed the power button was that the blue light turned on then off seconds after, no sound plays and the screens stay black, is this some sort of battery problem? The orange light still lights up if I plug it into a charger
Sounds like a battery issue. Try removing the battery and plugging it in to a charger and then try. If that doesn’t work there’s the chance that’s there’s a short somewhere. Have you spilled any liquid on it?