After a big lightning storm, I could not sync my wireless controllers and the ring lights would not come on. RF Board fried.
The tools made getting to the fried RF Board really easy.
While I was at it I ended up replacing the green lights with blue ones. I had bought a cheap RF Board with blue lights off of ebay. While I had the cover off, I vaccumed the heat sink. Word of advice there are little black pieces that go on top of the heat funnel, do not suck them up in the vacuum like I did.