The switch has two partitions to load a new config firmware for testing and then easily roll back to an older firmware once testing is completed.

This dual partition is found under Switch>Management>Dual Image.
Currently Partition 0 is the active partition.

To upgrade the switch click the upgrade button in the upper right corner of the screen.

It is prudent to upgrade the new firmware image to the backup partition, not the active partition. In this example Partition 1 is the backup partition and the active partition is partition 0.

After you click browse and find the valid image firmware file to upload to the switch, and click apply you will get this confirmation screen. Click the OK button to proceed.

After you click the okay button you will get another confirmation screen. It’s important you click the upgrade button on the second screen in time to not have the firmware process timeout.

The switch will ask you to reboot after the firmware has been loaded in the partition. Please click the reboot button and log back into the switch.

Now that the new firmware is loaded in the back up partition all that is needed to have it running on the switch is for you to switch the active partition to Partition 1 and not Partition 0. If doing this for testing purposes then when you are done testing you can just switch the active partition to Partition 0. If committing to the firmware that is loaded on the active partition then please update Partition 0 to match the firmware in Partition 1 and switch the active partition back to Partition 0.