Grayson is very attached to his Nintendo Gameboy Advance SP, but the R key stopped working

Daddy found the problem (do you think this voids the warranty ?)

Here's the problem, this is the R key switch

Inside, a bit of oxidation, cleaned it with my Lenline 70-450 abrasive fibreglass cleaner

The quality tester notes now the A key doesn't work

A quick trip back to the shop, and the customer is happy