I use electric contact cleaner to clean all my controllers when they get sticky buttons or stick drift. You don’t even need to disassemble it, just turn off the deck/controller, spray the cleaner in around the button/joystick that’s not working right, press the button/move the stick around some, and then wait a couple minutes before turning it back on.

Only important thing to remember is that you need to make sure the contact cleaner you buy is plastic safe, some aren’t. I’ve had really good results with CRC brand QD cleaner, and it’s available at a lot of stores.

Also.going to tag @Kareemofficial@thelemmy.club