Pin operation is a big problem. It essentially means that the pins on the controller have begun to "drive" in a particular direction. At best, it can be annoying – at worst, it makes the game completely unplayable. Over the past few weeks, many Nintendo Switch users have reported problems with the Joy-Cons discovery. Nintendo has charged repair fees to address these issues.
According to VICE, it will no longer be the case. VICE claims to have seen an internal customer service document stating that "customers will no longer be asked to provide proof of purchase for Joy-Con repairs." The document also states that "it is also not necessary to confirm warranty status. If a customer requests a refund for a previously paid Joy-Con repair … confirm the previous repair and then issue a refund."
VICE claims that they received the note from a source at Nintendo, which they will not name for anonymity purposes. This is good news, and if you have already paid for a repair, don't worry ̵
Meanwhile, if you're looking to get some new Joy-Cons anyway, Nintendo recently announced two color combinations to players to enjoy.