...
1) Open the configuration of the Unified Firewall in a web browser and click on the option System → Recovery Points on in the upper right corner.
2) Click Recover for the desired Recovery Point to change revert back to this firmware.
...
1) Open the configuration of the Unified Firewall in a web browser and click on the option System → Recovery Points on in the upper right corner.
2) Click Recover for the desired Recovery Point to change revert back to this firmware.