For Espressif chips (ESP8266/ESP32) using esptool.py :
(Addresses vary by partition table.)
Mistakenly writing OTPBIN with wrong data can brick the device’s security features. Always verify the binary before flashing.
: Once blown, these bits cannot be reverted. The otp.bin file represents a raw extraction or a pre-programmed layout of this space.
Treat your otp.bin and seeprom.bin files like passwords. If you post them online, someone else can use your identity, which will result in your console being permanently banned from private network servers.
from a physical Wii U console, or are you troubleshooting an error in Cemu