PSP UMD reader not there, none of the buttons work

I just found my brothers old PSP 1001.charged it, and it got on the initial setup screen twice, but none of the buttons, nor the analog seem to work. The power light is green, but it’s not booting up (the lcd backlight is visible).

Edit: I manage to boot it up. The X, Circle, and Triangle buttons work, but not the d-pad or Sqaure. Attached is a video of it working(sort of)