I have three srw2048 series switches at my new job. One updated fine via the web interface the other two (after I found a windows machine to use the web interface) looked as though they were uploading the new file but after a reboot I was still on the old verison. So I broke out the console cable. What I have done is to Download Software to the switch (option 1) this kicks me over into xmodem. Once I am in xmodem I choose to send a file (the latest rom) using the 1K Xmodem protocol it immediately gives me retries and errors until it reaches a threshold that ends the session. During this whole process zero k is transferred.
Boot Version 1.0.0.04
Software Version 1.0.0.49
Hardware Version 00.03.10
The only thing I can think is that I must need older files to upgrade to an intermediary version before loading the latest 1.22 rom file.