You can force the controller to boot up into Bootstrap (OS, BIOS) by turning on the power supply while pressing specific keypad keys:
- From the PLC System Upgrade Wizard you can select “advanced.
- You will need to install first just the Bin, then just the Boot, then just the OS.
- When it asks if you would like to send plc run command, select no each time.
- Press finish after each individual firmware process completes.
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