You can verify this yourself by using a serial number checker like IsMySwitchPatched.com or the SSNC tool . Simply enter the first several digits after your XKJ1 prefix to see the status. Do you have a different console you're looking to check, or
prefix indicates that you have a "Mariko" unit, also known as the is my switch patched xkj1 top
This means it is a model, which has a hardware-level fix that prevents the standard "RCM" software exploit used for modding. 🛠️ Identifying Your XKJ1 Model You can verify this yourself by using a
Based on data from serial number databases, serial numbers starting with and XKW are known as "Mariko" units (the revised, better-battery models released around 2019/2020). These consoles were manufactured with a hardware fix that closed the Fusee-Gelee RCM vulnerability found in the original V1 "Erista" models. XKJ / XKW (Mariko): Patched / Unhackable via softmod. 🛠️ Identifying Your XKJ1 Model Based on data
The search results flickered to life. His heart sank as he scrolled through the forums. XKJ1 wasn't just a random sequence; it was the mark of the "Mariko" refresh—the V2 Switch with the improved battery life. While the longer playtime was a blessing for road trips, it was a curse for homebrew enthusiasts.
| Top number example (full serial) | Likely status | Reasoning | |----------------------------------|---------------|------------| | XKJ100000000 – XKJ1002xxxxx | | Earliest Mariko units; bootrom fixed. | | XKJ1003xxxxx – XKJ1009xxxxx | Patched | Still Mariko; no unpatched models known. | | XKJ101xxxxxx and above | Patched | Confirmed patched. |
If your Nintendo Switch serial number starts with , your console is 100% patched . This means it belongs to the "Mariko" hardware revision (v2), which fixed the hardware vulnerability used for easy unpatched mods. What Does "Patched" Mean?