⬢Using the selector-knob press "FLASH" button on the LCD screen.
⬢Wait until the process is completed.
Do not remove the USB flash-drive during the installation! This can fatally damage the electronics.
⬢When the process is successfully completed, the printer will finish the boot and you will see the Home screen.
⬢We are done here! Your printer with the new firmware is ready to rock ;)
If the printer repeatedly boots to the home screen without showing the firmware update screen, please try to reformat your USB drive or try a different one.