Requires a USB cable connection; the tool cannot communicate with the printer over Wi-Fi. 🚦 How to Use Service Tool V3400
Clears the 5B00 error, allowing the printer to function again after reaching its calculated limit. Service tool v3400.zip
Using V3400 on newer printer models (like MG3520 or G-series) can permanently lock the printer's service mode, requiring a logic board replacement or EEPROM flashing to fix. Requires a USB cable connection; the tool cannot
Allows users to manually set the ink absorber counter value after physical cleaning. Requires a USB cable connection