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5-3. Software rewrite mode
When the power supply is turned ON with switch pressed, the system will start up in IT-20 application soft-
ware rewrite mode.
3
Load the software and press the switch
3
while
“PGWr” is displayed to start software rewrite.
Rewrite cannot be executed if several pro-
grams are written in USB.
Never cut off the power supply or pull out the USB during this process. Neglect may result in main
unit failure.
Rewrite progress (%) is indicated while data is loaded,
and “PoFF” is displayed when it is completed. Turn
OFF the power supply and restart the sewing machine.
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