Chosen Solution
After changing the keyboard, the LCD backlight stopped working. I think whoever changer the keyboard didn’t disconnect the battery and popped the fuse in the process. I’m thinking of changing it, but I can’t find it. I’ve tested continuity in some components of the board, but I didn’t find anything wrong This is the first time I use this site, so I don’t know if the images are what or where they’re meant to be, so tell me if something’s wrong Also, if you think the problem is something else, please let me know.