No power - makes a popping sound - fails to turn on.

"The problem is the speaker or camera cables. It's usually the speaker cables—rarely is it the camera.

The cable will have a micro tear on it due to the opening and closing of the 3DS. The manufacturer should have protected the ribbon cables."

Andrew, start by checking the fuses for continuity. After that, you will have to check the LCD's. Sounds to me like that is where the problem is.

"Had the same problem with my sons 3DS.

Check the ribbons behind the top LCD screen. They come loose from opening and closing the DS and can cause a short. In mine, I was lucky and it was just a loose ribbon so it could be fixed.

To expose the back of the top LCD screen, follow ifixit instructions. Be careful removing the screws. The speaker magnets are quite strong and the screws are attracted to them which could tear the speaker cone.

Check to see that all the small ribbons under the speakers (volume, camera, 3D) are properly seated in the connectors. The connectors are like buckles. To reset a loose ribbon, gently lift the top of the connector latch opposite of where the ribbon is inserted. Carefully re-insert any loose ribbons and close the latch.

I then created some slack in the main ribbon at the bottom and taped it down so it wouldn't move when the DS was opened and closed.

This solution worked for me."

sorted this issue just by removing the bottom battery cover then removing the 8 or so screws that holds the base , as soon as you gently slip the bottom case off be careful as there is 2 tiny little ribbons that are pop fit 1 to the left top, 1 to the right top,also to the top right corner you will more then likely see the ribbon that has come out of its clip fit, gently lift the flap and re insert the ribbon and then re close the flip catch, this is such a common problem with the 3d ds as the ribbon is tight so it don't take a lot to dis lodge it, a slight knock or it being dropped, i hope this helps those that don't think they are able to attempt to fix this just take the dive it can't get no worse if it don't work in the 1st place ;0) and if you manage to fix it your be the best dad/mum in the world makes it worth trying don't it ? lol

I had the same problem with my son's 3ds... That popping sound when you try to turn.It on and then fails to turn on... After tried to reset it... We figured out... That you dont have to open the cover more that 90° or 100°.... But we still haven't fixed it yet..(cuz we don't have the right knowledge).. But now he can play his fav games.. Lol

"This happened to me once so I went on a website and it showed me how to fix my 3DS/2DS. You have to use a screw driver to remove the front cover and then remove the battery inside and wait for at least 10 seconds and put the battery back and the cover back. Then turn it back on and it should work.

Source: Nintendo.com Tech Forms

I hope this works for you :-)

Jhon Rayles :-)"