need help

Good Hello, As indicated in the title, I would love to create my own Wii portable. But, Even if I have already learned a lot about electronics, people who make their own consoles as well as how to trim a Wii, etc ... I'm still a beginner! So if anybody have informations for me (like If there is...

So I bought a broken 3DS for $20 and it pops and then shuts off. I did research and figured it was the camera or speaker. So I bought both and put them in my the 3ds, but I still get the same problem. Any Ideas?