Returning the updated firmware to the previous version
Return the firmware of this machine to the previous version.
In the administrator mode, select [Network] - [Machine Update Settings] - [Firmware Rollback], then click [Rollback]. Clicking [Rollback] applies the firmware displayed in [Backup File Version] to this machine.
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The Hard Disk is optional in some areas. To use this function, the optional Hard Disk is required.