If you are trying to find an unpatched console for easy modding, you should look specifically for serial numbers starting with XAW or XAJ and verify them against the database.
The community has gathered extensive data on millions of serial numbers to provide a definitive answer. According to the primary community-driven guide on GBAtemp, which is considered the most accurate resource, the verdict is clear:
Consoles with "XKJ", "XKW", or "XK" are part of the hardware revision that includes the patched "Mariko" motherboard. Because of this, they are incompatible with the software RCM exploit. Any attempt to use an RCM jig on a Mariko unit will be met with a black screen and no response, as the vulnerability has been completely sealed.
Enjoy the console as intended by Nintendo. V2 consoles offer significantly better battery longevity and run slightly cooler than the hackable V1 models. is my switch patched xkj1 top
Early Nintendo Switch models, released between launch in March 2017 and mid-2018, contained a hardware flaw in the Nvidia Tegra X1 processor’s boot ROM. Known as , this flaw allowed users to force the console into Recovery Mode (RCM) via a physical jig and push payloads over USB to execute custom firmware. Because this vulnerability existed in the permanent read-only memory of the chip, Nintendo could not fix it with an over-the-air system update. The Mariko Hardware Refresh (V2 Patched)
In mid-2019, Nintendo quietly phased out the original hardware and released the . Internally codenamed "
Let me know how you'd like to . Share public link If you are trying to find an unpatched
: Attempting a modchip installation without experience can permanently damage your console. Additionally, a modded Switch faces a high risk of being banned from Nintendo online services How to Confirm Your Model
Are you looking to mod the console for , custom themes, or emulators? Share public link
Nothing harmful will happen, but it will not work. Your console will successfully enter RCM mode, but when you attempt to push a custom payload (like Hekate) using a computer or phone, the screen will remain black and the payload will fail to send. The fixed boot ROM safely rejects the unauthorized code execution. Can future official software updates patch a modchip? Because of this, they are incompatible with the
Online tools provide an instant check for most serial numbers.
If your Switch is not patched, updating the firmware is a straightforward process:
Contextual settings indicate you might want further clarification on specific hardware behaviors or alternative solutions.
Nintendo serial numbers follow a pattern:
If you are looking to buy a different unit for easier modding, search for consoles on marketplaces like eBay or Mercari, ensuring the serial starts with XAW1 and falls within the "safe" ranges. Switch Hackable Serial List