Enabling options for R&S test equipment

[carver]

there are no such programs for FSL3.
you can contact anyone, who takes them from the R&S site,
but can sell  much cheaper. for example to me.
I work with FSL3/FSL6 before.

[Ksi]

I have updated the firmware from 5.0 to 14.0 in my FSH3, but now it won't boot anymore. Can someone share me older versions from v5 and the like?  Or come up with tips how I can get my instrument working again?