Is My Switch Patched Xkj1 Top Jun 2026
model (often found in the all-red box). These units were manufactured with a updated Tegra X1+ chip that fixed the hardware vulnerability found in early 2017 models. Modding Status
This guide focuses specifically on the serial number prefix—frequently found on Nintendo Switch V2 (Mariko) consoles —and tells you definitively whether your device can be easily hacked. 1. What is an XKJ1 Switch?
The Nintendo Switch's operating system is based on a customized version of the Linux kernel, which has made it an attractive target for hackers. In 2018, a group of hackers discovered a vulnerability in the Switch's boot process, which allowed them to gain access to the console's underlying operating system. This exploit, known as the "coldboot hack," enabled hackers to install custom firmware, such as Atmosphère, on the Switch.
To understand why your console is patched, it helps to decode exactly what an XKJ1 serial number indicates about your device’s internals:
Because the fix is at the hardware level, you cannot "unpatch" it with a software update. Why XKJ1 is Always Patched is my switch patched xkj1 top
The site will give you one of three results:
Your only option for running custom firmware on a patched Switch is to solder a physical modchip into the console's motherboard. This is an advanced technical procedure that is not recommended for beginners. Other alternatives include: Wait for a new software exploit (currently unknown if or when this will happen) or Sell the console and purchase a guaranteed unpatched V1 model.
In mid-2019, Nintendo released a revised hardware edition commonly referred to as the . This version features an updated Tegra X1+ (T214 / T210B01) processor . Nvidia permanently erased the Fusee-Gélée vulnerability at the factory level by completely rewriting the boot ROM.
Enjoy the console as intended by Nintendo. V2 consoles offer significantly better battery longevity and run slightly cooler than the hackable V1 models. model (often found in the all-red box)
The Tegra X1 chip inside the V2 console is patched against the Fusée Gelée exploit, which is the primary method for soft modding.
Are you looking to mod the console for , custom themes, or emulators? Share public link
On the other hand, an unpatched Switch:
Not possible. The hardware patch prevents the "Fusee Gelee" exploit from running. In 2018, a group of hackers discovered a
: This is not beginner-friendly . It requires "microsoldering" skills to attach tiny wires directly to the CPU and motherboard.
If you're looking at the back of your Nintendo Switch and see a serial number starting with "XKJ1", you have stumbled upon a key piece of information. The term "top" here likely refers to the serial number being located near the top of the sticker or perhaps a purchase listing. Your core question is whether this specific serial number prefix means your device has been patched against the common hacking method. The short answer is .
Nintendo's solution to this vulnerability wasn't a software patch—it was a hardware revision. Starting around June/July 2018, the company began manufacturing new Switch consoles with an updated Nvidia Tegra X1 chip (codename "Mariko") that fixed the bootrom vulnerability. These "patched" consoles are not susceptible to Fusée Gelée and cannot be hacked with a simple jig and software.
Because the XKJ1 is a patched V2 console, the only way to mod it is by using a (such as the SX Core or the newer Hwfly/Picofly chips). What the Modchip Process Entails
“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.