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Firmware Upgrade/Downgrade in fortigate

To change the firmware, go to System > Dashboard > Status > System Information widget and select the Update link on the Firmware Version row.

Firmware update is mandatory performed to get latest features and bud fixes from Fortios.  It is recommend taking system configuration backup before performing firmware update. To perform Firmware update we should have admin rights

 

Upgrade From

Select the firmware source from the drop down list of available sources.

Firmware Version

This appears only when selecting FortiGuard Network is selected from the Upgrade From drop-down list. Select a firmware version from the drop-down list.

If downgrading the firmware on the FortiGate unit, select the check box beside Allow Firmware Downgrade.

Upgrade File

Browse to the location of the firmware image on your local hard disk.
This field is available for local hard disk and USB only.

Allow Firmware Downgrade

Select to confirm the installation of an older firmware image (downgrade).
This appears only when selecting FortiGuard Network is selected from the Upgrade From drop-down list.

Boot the New Firmware

By default, this is enabled. Select to disable the FortiGate unit’s reboot process when installing a firmware image to a partition.
This option enables you to install a firmware image to a partition without the FortiGate unit rebooting itself and making the firmware image the default firmware that is currently running.

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