God I wish megacorps would stop being morons with NDA nonsense and just open up the possibilities for open source devs to actually use the hardware that’s out there

That’s a spring hinge - I would not attempt to disassemble it. For this one, I’d use a light oil, like 3 in one oil or sewing machine oil and just do my best to get it into the hinge, either through the upper hole with the bar coming out of it, or allowing it to penetrate down the seam in the center of the top. You’ll probably need to work the door back and forth a bunch to get the oil where it needs to go.