A newly published exploit for the Nintendo Switch console is unpatchable. The exploit can’t be fixed via a downloadable patch because the exploit makes use of a vulnerability in the USB recovery mode, circumventing the lock-out operations that would usually protect the bootROM. The flawed bootROM can’t be modified once the chip leaves the factory. Access to the fuses needed to configure the device’s ipatches was blocked when the ODM_PRODUCTION fuse was burned, so no bootROM update is possible.
Nintendo may be able to detect hacked systems when they sign into Nintendo’s online servers. Nintendo could then ban those systems from accessing the servers and disable the hacked Switch’s online functions.
You can read more about the Unpatchable Nintendo Switch Exploit at: