Upgrade Firmware Cisco Switch SG500X-48P

[Daniel Ibm]

I've got a Cisco Switch SG500X-48P

and I download the firmware updates from the cisco web, the download is a .zip file with .ros and .rfb file inside.

So when i tried to upgrade the firmware send me the error "Copy: Illegal software format"

I tried to upgrade with the .ros, .rfb and the zip file but it doesn't work.

Can anybody help me to upgrade the firmware or tellme what it's te image file extension.

Thank you.

[Aleksandra Dargiel]

Hello,

Please try to check this document it should guide you very well through upgrade process:

https://supportforums.cisco.com/document/12321266/firmware-upgrade-troubleshooting-300-and-500-series-managed-switches

Aleksandra

[thirunagaa]

Hi

 please refer this link to fix your switch issue 

https://supportforums.cisco.com/discussion/12286911/sg300-firmware-upgrade-copy-illegal-software-format

We need to update boot loader file on your switch using tftp service .this will fix the issue