to chipless firmware generally requires a Windows computer, a USB cable, and specific software tools from providers like WIC Reset Utility Download Software
Epson employs a cryptographic handshake between the printer’s mainboard and the cartridge chip. The printer sends a challenge, and the chip returns a signed response. Chipless firmware patches the function that requests this challenge. Instead of looking for a response, the patched firmware assumes the response is always valid. xp-7100 chipless firmware