1) Extract the firmware zip file to your TFTP Root folder.
2) Change the file name of the TGZ file to local.tgz (the original filename is too long).
3) Logged into Web Management.
4) Go to System > System Utilities > Download File to Switch. Set the following settings in the fields:
File Type: Code
TFTP Server IP Address: <IP of TFTP Server>
TFTP File Path: <Leave empty>
TFTP File Name: local.tgz
Start File Transfer: Checked
6) Click on the Submit button. The upgrade will take several minutes to complete.
7) Go to Save All Applied Settings and click Save.
Go to System Reset and click Reset. The switch will now reboot and the proper firmware version will appear on the switch.
