Help figuring out what I did wrong.

My toddler got ahold of my controller and chewed on the joysticks which caused a stick drift on both sides. I recalibrate the sticks that didn't work. So I replaced both joysticks. Now the controller won't turned on. I check and the wire that connects the power board to the mother was broken. So I resoldered it. Still won't come on. I changed the battery with my other pro controller and it still won't turn on. I'm wondering if it is a fuse but I'm not sure.