Hacking Opened my Pokemon edition Switch to find that the APU is a V1, Fusee exploit didn't work on it?

[01X]

Last night I opened my switch to install the SX Core, and to my surprise I am looking at a V1 unit.

I had tried to run fusee and other exploits and they all failed. citing that the unit was a patched unit that I assumed was a V2.

Now I am looking at it and it's clearly a V1 so I have a few questions. How did nintendo patch the V1 and stop fusee from working on it, and my second question is this:
would it be possible to install the SX Core, and downgrade my firmware to a build lower than what it shipped with, and then remove the SX core since this is a V1 chip?

Thank you for any answers you guys can provide.

 

[NoxiousNinja]

How did nintendo patch the V1 and stop fusee from working on it

The Tegra X1 has support for IROM patches, which are basically a factory-programmable set of fuses that can override bootrom code. Around mid-2018, Nintendo developed a patch for the RCM bug in this format and started shipping it on V1 models.

 

[01X]

The Tegra X1 has support for IROM patches, which are basically a factory-programmable set of fuses that can override bootrom code. Around mid-2018, Nintendo developed a patch for the RCM bug in this format and started shipping it on V1 models.

Thanks for the info. So basically the smartest thing I can do is leave the SX core in?

 

[NoxiousNinja]

Thanks for the info. So basically the smartest thing I can do is leave the SX core in?

I think so, yeah. I don't know much about the SX Core, but all models of the Switch have anti-downgrade hardware fuses, so if you tried downgrading then removing the modchip, it just wouldn't boot.