3DS turning off without warning fix.
Console turning off when the screen is fully opened? Watch • 3DS Powering Off When Screen Is Fully Open...
Short video to explain how I solved a problem where my 3DS was turning it's self off.
I've seen a similar problem on a DSi so is the best place to start for any DS console which turns out without warning. Please hinder my warning about using the right screwdriver. I am not responsible if you cause any damage to your device.