you can downgrade th edriver for sure , but not sure about the firmware …
mu=y experience was :
-installed a RR with latest firmware loaded in It (the RR i use in SCRATCH ) and istalled the latest RR driver on my OSX resolve OS
-did not worked
-replaced with another RR i have with the previous firmware but still latest driver on OSX
-did not worked
-Installed the previous official RR driver on the same OSX (still same RR with older firmware)
-It worked
I wish BMD will update Resolve 7.1.1 with the new red SDK (before the launch of resolve V8(
g