Learn how to repair controller I’ve taken aside to wash?

I just lately began getting dangerous stick drift and a type of clicking that may intervene with motion on my xbox wi-fi controller that was bought for me for christmas. It isn’t an elite sequence, simply rhe $50 one from walmart. As a substitute of taking it to a restore store or simply leaving it I made a decision to take it upon myself to take the quilt off and take the sticks off myself to wash them.

This didn’t work which resulted in me taking the controller aside a number of occasions to attempt to discover a repair. This has resulted in my controller not turning on in any respect. I consider it’s as a result of I took the shell of fully and I noticed someplace that doing that may rip one thing misplaced. I don't know what to do in the interim so I hope somebody may help

I perceive that I most likely shouldn't have taken this controller aside and I can save the cash for one more however it is vitally particular to me as mt late mom purchased it and I’d relatively restore it than merely purchase a brand new one. I do know that is painfully lengthy however any assist can be enormously appreciated.What the motherboard seems like