DS Lite won't turn back on after replacing bottom screen.

If the power light doesn't light at all (green one) and neither screen flashes when you attempt to power it on the fuse marked F2 by the battery terminal has blown. If the upper screen flashes but the lower one does not then the lower screen is not seated properly and visa versa. The dog ears on the ribbon cables need to be pushed in tight and squared with their socket. If you pay attention there is a white line on the motherboard. They need to be behind it and parallel with it. The black hinge that holds them in needs to be flat and straight, some times they pop out in the middle.

"try this http://m3wiki.com/index.php/Nintendo_DS_...

just to add that in repairing my son's ds (for the 3rd time!) i did the same thing! and i did put the black rubber piece in.. oh well. If I can do it I'm sure you'll be able to wield a soldering iron!!!"

Just want to say thank you to the original answer, it solved my problem. Thumbs up from me

I just shorted my motherboard because the new LCD didn't have insulation. I made two warnings (one at step 17, and the other at step 20) on the guide to ensure people check for insulation when replacing the lower LCD.