Nintendo responded by revising the hardware. Starting with units manufactured in mid-2018, they introduced an IPATCH (or "iPatched") boot ROM that closed the exploit. For consumers, however, there was no obvious label on the box. The only reliable method was to check the serial number against known patched and unpatched ranges. ismyswitchpatched emerged as a community-maintained database that translates an obscure serial prefix into a clear verdict: "Your console is patched," "Your console is not patched," or "Potentially patched."
To give you a starting point, here is a on the topic as I interpret it: ismyswitchpatched
With this information, I can tell you exactly which method to use! Tech-Roy Blog Nintendo responded by revising the hardware
Always use reputable guides for setting up Atmosphere CFW to ensure your console stays safe. Summary Table Console Type Vulnerability V1 (Unpatched) Vulnerable Softmod (RCM Jig) V1 (Patched/Mariko) V2 (Red Box) Lite OLED Frequently Asked Questions Will checking my serial number void my warranty? The only reliable method was to check the