Note: During the firmware refresh process, do not turn off the printer or remove the TF card, as it may lead to refresh failure. After the refresh is complete, conduct a simple test to verify if the movement direction and distance are correct. If any anomalies occur, promptly power off the printer and contact the manufacturer.
Note: The tutorial video is for updating firmware on SP5V1, so the number of firmware files may differ from the UI page of your V3 machine. However, the updating process is universal. Please obtain V3 firmware from official channels or our staff.)