I own 2 cisco switches small business switches.
they are both SG200-26 26-port gigabit smart switches. One has fw ver. 188.8.131.52 , while the other has version 184.108.40.206.
I am now trying to upgrade their firmware to the latest version 220.127.116.11, found here http://software.cisco.com/download/release.html?mdfid=283771818&flowid=24301&softwareid=282463182&release=18.104.22.168&relind=AVAILABLE&rellifecycle=&reltype=latest
I go the http management interface from google chrome and select "upgrade firmware from http". I choose the .ros file and try to carry out the update.
Unfortunately, the system informs me that the copy has failed and that the software is of "illegal format".
I have double checked that the file is the correct one. what could be wrong? Do I need to update the bootloader first? is there a guide for that?