Now you know the truth. Go forth and game (or modchip) accordingly.
“If the serial has ‘TOP’ next to it, that means it’s the top quality build and might be unpatched.” Fact: “TOP” is a factory assembly code. It has zero correlation with patched status. Both unpatched and patched Switches have carried “TOP” labels. is my switch patched xkj1 top
Let’s cut through the confusion. This article will give you a definitive answer, explain what "patched" means, decode the XKJ1 prefix, and clarify the myth around the "TOP" marking. Yes, almost certainly. If your Nintendo Switch has a serial number starting with XKJ1 , it is a patched unit. You cannot use the traditional “unpatched” Fusée Gelée exploit (the recovery mode glitch from 2018) to run custom firmware without a modchip. Now you know the truth
“Some XKJ1 units are unpatched if they were early production.” Fact: The XKJ1 prefix was introduced long after the patched bootROM was in full production. No XKJ1 units escaped the patch. It has zero correlation with patched status