: After writing, perform a "Read" or "Verify" operation to ensure the data was stored correctly at the 16-bit addresses.

: Drivers or software (like PonyProg or specialized Arduino sketches) to interface with the EEPROM via a programmer like the CH341A.

: The actual firmware data to be written to the chip.

: Use a library such as the RobTillaart I2C_EEPROM for Arduino or a standalone flashing tool to upload the extracted .bin or .hex file to the memory.