Hitachi IJ UX - Firmware Download Failure

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6.5.21 Firmware download failure
Do the system reset by rescue soft
Download is complete
properly?
Replace the EZJ126 board.
Internal communication
error occurred?
Firmware
download failure
Download is restart?
Insert the system USB to USB slot then turn on printer
Yes
No
End
Download is complete
properly?
No
Yes
Yes
No
Yes
No