Hi @ AK
You can upgrade the Switch either via TFTP or with the thumb drive, if the Switch is showing in the Unleashed Dashboard you can also upgrade from the unleashed, from there the only you required is the image SPS08095gufi.bin, so let me add the guide to upgrade with the Unleashed dashboard in case the Switch is showing, or with the thumb drive, now as you mentioned you can gain access to the switch via Console, SSH or telnet, but if it is asking for credential, and you have tried all the combination for the ICX, you will need to perform a password recovered, but unfortunately to perform the password recovered will be necessary to gain console access, now I will advise try first the upgrade of the Switch via Unleashed Dashboard.
1:Gain access to the Unleashed Dashboard using the IP address of the master access point, like you have access to the APP you can find the IP address of the master Access Point, so copy and paste in a web browser.
2:Once you are connected to the Unleashed dashboard, try to check if the Switch is showing.
Expand the Switches>if you see the Switch as connected you will be able to upgrade from there, the only you will require will be downloaded the code 08095g and find the image SPS08095gufi.bin
Upgrading ICX Switch Firmware
3:If the Switch is not showing, try to gain access via Console, SSH, or telnet to the Switch and try the next combination of credentials, including the same credential you used for your own access to the Unleashed APP.
4:If the credentials still no working, try the password recovery, but you're required to be connected via console access to the Switch.
Password Recovery on a Ruckus ICX(Tutorial video)
https://www.youtube.com/watch?v=XJS28DWbHM4Recovering from a lost password (CommScope Guide)
5:Once you gain access to the Switch, you can perform the upgrade to the code SPS08095gufi.bin using the thumb drive, take in consideration that if you are running a code 08080 or higer will be matter to upgrade bot partitions to the code SPS08095gufi.bin
ICX7150-C12 Switch#copy disk0 flash SPS08095gufi.bin primary
ICX7150-C12 Switch#copy disk0 flash SPS08095gufi.bin secondary
ICX7150-C12 Switch#write memory
ICX7150-C12 Switch#boot system flash primary yes
How to Upgrade a Switch ICX-7150-C12P using a USB flash drive
Technical Support Engineer | L2 TAC Wired | Lennar Home Community Moderator