I think you can try contacting TAC and ask them to publish an image for you although your contract is expired.
If they refused you may get this escalated and tell them I bought this device and I only need the driver.
try e-mailing email@example.com and write your request. I am no sure if they'll agree on this. you can't even open a TAC case if you don't have a contract but try asking them a favor to publish you the image! not sure if they'll agree (they usually don't but trying will not harm).
What you can also do is to ask a friend that has a contract to download this peace of software for you and get rid of this headache.
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Transferring Crash file from standby: Login to the Active WLC in HA.
From CLI: (Cisco Controller) >transfer upload datatype crash (Cisco
Controller) >transfer upload filename (Cisco
Controller) >transfer upload mode tftp (Cisco Controller) >transfer
This is the start of a display filter cross reference between Wireshark
and OmniPeek. The 1st installment is a table of advanced filters. More
filters will be added as time allows. It is a living doc, so check back
for changes every so often Please feel f...