My's Radio's on/off button started to require hard or long presses to function, so I dismantled the Radio thinking I'd have to stick on a new conductive pad or coat the existing pad with Remote Restore. To my surprise, the pad and PCB contacts were covered in a layer of grease or oil, just in the vicinity of the on/off button, and after cleaning it off the button works as new. I don't know where the grease or oil came from, but read on the Remote Restore website that the manufacturing process involves baking the flexible keymats to remove excess silicon oil, and this is sometimes incomplete so the oil can flow and pool. I opened my Harmony 650 remote and found oil in it too. I thought others might be interested to know it's a simple fix.