Dead motherboard? Battery still works

I replaced the wipers in the potentiometers, and now the controller won’t turn on whatsoever. I did no soldering whatsoever. I followed the “Dualsense Joystick Replacement” article by Arthur Shi but skipped any step with soldering. For example, step 27, I just flipped the motherboard over, making sure not to put too much strain on those wires to the vibration motors. I just opened up the potentiometer and replaced the wipers. It’s not an issue with the battery either because I hooked it up to another controller and it works just fine. I’ve also replaced the wipers in the potentiometer many times on two other controllers and I’ve never had a controller die on me. There is no damage to motherboard, at least none that is visual. The only thing I can think of that happened was that I broke the little gold plate on the mother board that works as the power button or short circuited it somehow. After I replaced the potentiometer I wanted to test it on the hardwaretester.com site before reassembling the controller, so I just plugged the battery in to the back of the motherboard, connected the controller to my laptop, turned the motherboard on by pressing the gold plate with my finger, tested it, and then unhooked the control to my laptop. I unplugged the battery and reassembled the controller (the blue light showing the motherboard was on had gone off when I unhooked it from my laptop, so I doubt it was on when I unhooked the battery) but now it won’t turn on, and again I’ve ruled out an issue with the battery by testing it on a different controller. Any ideas? And is it just a matter of replacing the motherboard?