In this case, the customer has plugged in the USB before turning on the computer, causing the machine to misrecognize the files in the USB and erase the firmware, requiring the firmware to be reinstalled.
Firmware loading method:
Download the firmware files and place all individual firmware files into the root directory of the USB.
Plug the USB into the machine and restart the machine, the machine will automatically update the firmware
After completion, please unplug the USB and restart the machine to take effect.