[New 3DS Xl] Replaced top screen issues

[u/Underwatch324657]

I have replaced the top screen on my New 3ds Xl and on start the screen flashes bright white then dims down to basically off and only shows white with a small blue circle in the bottem right corner.

I have unplugged all the connectors through the hinge and repluged the 2 small cables next to one of the speakers.

I have no idea what the issue could be here as the screen seems to work fine.

Any advice appreciated.