https://wccftech.com/nintendo-switch-patched-hardware/

Earlier this year, a Nintendo Switch hack using a hardware vulnerability found in most Tegra devices has been discovered, allowing users to run unsigned content such as emulators and homebrew software. While Nintendo didn’t comment on the matter, the Japanese company did act quickly, and the first patched units can now be found in stores.

According to fresh online reports, the first Nintendo Switch units with patched hardware vulnerability are now out in the wild. The updated hardware has been fixed through a system known as iPatches, making it impossible to run unsigned software on Nintendo Switch through the bootflaw hack.