User blog comment:Narga99/Goodbye Monster Hunter/@comment-11537809-20130728113924

Yep its the ribbon cable.

The Problem: There is a ribbon cable in between the top and bottom screen of the 3ds that is acting faulty (most likely due to bad design). What happens is as you open the 3ds the cable stretches enough to rip slightly, causing the game to shut off with a pop. If it wont turn on, I'm not sure so you might want a proffesional to check.

The Solution: Send it in for repairs. OR, manually fix it yourself either by replacing the ribbon cable (replacement cables cost roughly $5-$7) or asking a reliable friend to do it.

I have the same problem so I know how you feel but luckily I can still play to a certain degree. I hope you get yours fixed soon