Great, I successfully replaced my DS's housing since it was broken. That was my first change, it went well, except for the poorly made case not working out too well(plastic pieces that lath in the top shell have extra plastic on them, screws don't fit, buttons too far in, especially dpad, partly the case not taking the screws, slot2 was loose[fixed this by actually putting in the inside of the slot2 for old DS, led light holes too small, triggers loose) But it's all good, finally able to play something since my PSP was stolen so then i went on with fixing the second old DS so I could sell it. Not so good, I replaced the top screen, no speakers since I can't solder, they don't care , and then I put it back, tested, but it had started, bottom screen flicks, off. Then I went around seeing if the ribbon was messed up(I didn't touch the bottom screen one)and then after that I test again, nothings, turns on, goes off. So then I try all the ribbons, by taking them out and putting them in again, worth a try. The top screen worked by flickering once, then off, like usual. After that I did nothing, check later, nothing, on then off after a few seconds. Any help? Please?