Desoldering micro switches on the logic board.Any easy methods?

Arbaman is right about the small scale but it sounds like a good project if you have the right equipment. You should be able to remove and install these components with a hair dryer, quick chip smd removal kit, soldering iron,  Kapton tape and some solder. Just melt the low melt alloy into the solder joints with a soldering iron than use a hair dryer to remove the component. Just be careful if that button is rubber, Kapton tape will not protect it. Try and tape a small heatsink on top.  Just use an iron to resolder it on the board