Chosen Solution

I was repairing something on my ds and had to unplug the screen. Once I plugged it back in and put it all back together, the green light came on, the charge light came on, but the screen didn’t. I took it apart, pushed the ribon cable in as far as possible, and still nothing. I would like to avoid a new getting a new screen, if at all possible.

So if you have another working display, from another ds. And can test them on the other ds? And we know the board is getting power. Then check the board for any damaged components. Especially looking at the connector pins for the display