GoPro Hero 3+ Silver Lens Replacement

I scratched the lens on my GoPro, so I ordered a replacement lens from Amazon, along with a cable to check the focus, and fixed it myself. The entire process only took about 15 minutes, and it has worked fine so far. The white residue is not any type of glue. It is excess glass polish, as I first tried to polish out the scratch. Lastly, there is no audio on the video, in case you thought something wasn't working. (Update: Lens I purchased is no longer available, so I changed the link to a lens that two friends I know have used to fix their cameras.) HDMI Cable I Ordered: https://goo.gl/PYP3qH New Lens: https://goo.gl/cPcJrF