Has anyone seen this error when attempting a screen replacement on a DSi?

This js my first repair so I'm not super knowledgeable on issues with DSi consoles. When I bought this one both screens were broken, but I could hear it boot to home and the buttons worked fine. I got some new screens and put them in but after reassembling it keeps freezing at the dsi boot screen. I've checked the cables multiple times and I'm not sure why it keeps doing this. Does anyone have any experience fixing this issue? Edit: there is no sd card and no game card.