I bought this 7962 many years ago and it never made it out of the test lab because of poor 5g performance, (stopping further Ruckus 5g deployments in the process).
I notice that there have been quite a few firmware updates in the meantime, but I do not have a load firmware from file option and the remote load options don't work though it does recognise a newer firmware is available.
Thanks in anticipation, it would be nice to get 5g working properly on an AP that cost $1200.