: Using the write key and target address, users can update the WiFi MAC address or serial number directly in the EEPROM. 3. Factory Reset vs. EEPROM Dump
: When replacing a mainboard, a dump from the original board can sometimes be used to transfer calibration data (like printhead voltage settings) to the new board. Native Printer "Hexadecimal Dump" Mode eeprom dump epson
| Tool | Purpose | |------|---------| | CH341A programmer (or TL866, FT232H) | Reads/writes I²C or Microwire EEPROMs | | SOIC-8 test clip | Non-destructive connection to the EEPROM on PCB | | EEPROM reading software | AsProgrammer, NeoProgrammer, FlashROM (Linux) | | Soldering iron (optional) | If desoldering is necessary | | Logic analyzer (optional) | Protocol debugging | : Using the write key and target address,