It's against federal regulation to void a warranty for non-first party repair.
https://motherboard.vice.com/en_us/article/ne9qdq/warranty-void-if-removed-stickers-illegal-ftc
"FTC staff has concerns about the companies' statements that consumers must use specified parts or service providers to keep their warranties intact. Unless warrantors provide the parts or services for free or receive a waiver from the FTC, such statements generally are prohibited by the Magnuson-Moss Warranty Act, a law that governs consumer product warranties."
He wasn't trying to repair it. He was intentionally destroying it for laughs.