In terminal/command prompt:
./gaster pwn
The term "Pwndfu" was popularized by the iOS jailbreak community. Tools like checkm8 used a Pwndfu mode to exploit a bootrom vulnerability in certain Apple devices, allowing for permanent, unpatachable jailbreaks. The concept was so powerful that when similar low-level USB vulnerabilities were discovered on other hardware, the name "Pwndfu" stuck. gaster pwndfu
Because the Switch's exploit was hidden, low-level, and gave the user access to the console's most fundamental code—much like Gaster exists in the hidden spaces of Undertale —the community began calling this specific Switch Pwndfu implementation The name served two purposes: In terminal/command prompt:
If a device is stuck in a recovery loop or has a corrupted filesystem, Gaster can boot a custom iBSS that mounts the device as an external drive, allowing manual repair. Because the Switch's exploit was hidden, low-level, and
To exit pwndfu, simply reboot the device (Power + Home/Volume Down).