WATCH GT 2 ремонт кнопки

Just a month after buying a new watch, the button became hard to press. I thought it would work out, but it didn't. A year later, everything was just as bad. And now, two or three years later, I decided to disassemble and try to lubricate the button rod. In general, part of the display sensor failed in the phone from diving into the sea to 8 meters. The battery began to discharge quickly. But the button began to work poorly long before the sea.