GBA power switch teardown, clean, rebuild. 

This was just a quick one by request from some friendly Reddit folk. No this is not clean enough, you want to get as much of the black from the copper pads as you can. I use Iso alcohol, or metholated spirits. Be careful using acetone or other aggressive solvents as it'll dissolve plastic and PCB silkscreening.
You can also put a slight V into the metal shield so it acts like a little bump pushing the sliding switch harder into the contacts.
Be careful! hot things are hot, sharp things are sharp, poisonous things are poisonous. Subscribe, like and share!
Hope you found this useful!