While XKJ1 is generally patched, it is always best to verify. Serial databases can occasionally be wrong, or, in rare cases, you might have a factory anomaly. 1. The Serial Number Search (Easiest)
: Any serial number beginning with XK (such as XKJ , XKW , or XJW ) explicitly identifies the hardware refresh. 🛠️ How to Mod an XKJ1 Patched Switch
Xkj1-top refers to a specific model of the Nintendo Switch, often associated with an earlier production batch. The "Xkj1" prefix is a code used by Nintendo to identify a particular hardware revision of the Switch. The "-top" suffix likely refers to the fact that these Switches have a specific top model number. Switches with the Xkj1-top model are generally considered to be more vulnerable to hacks and custom firmware installations due to their outdated firmware. is my switch patched xkj1 top
console and still want to run homebrew applications, emulate retro games, or back up your physical game cartridges, a software jig will not work. Your only option is .
The key to the original software-based hack is a hardware flaw known as . This unpatchable vulnerability exists in the bootROM of the Nvidia Tegra X1 chip found in early Switch consoles. Hacking group ReSwitched, led by Katherine Temkin, discovered this flaw in early 2018. While XKJ1 is generally patched, it is always best to verify
Modchips (such as Picofly or RP2040-based chips) bypass the secure bootROM by delivering a precisely timed electrical glitch to the processor core upon startup.
If you want to double-check your specific serial number, you can use community-maintained databases like the Switch Serial Checker NH Switch Guide Are you planning to install a modchip yourself, or are you looking for a pre-modded V1 unit instead? The Serial Number Search (Easiest) : Any serial
If your serial starts with XKJ1 and the label also says "TOP", your Switch is still patched. The "TOP" mark is irrelevant to exploit viability.
Crucially, because this is a hardware-level flaw in the processor's bootrom, it cannot be patched with a simple system software update.
Is the XKJ switch v2 hackable ? If not, when will it be ? : r/SwitchPirates
Vulnerable to the software-based RCM exploit regardless of system firmware updates.