said by DarkLogix:Where I'm at we're using
455880-B21 with 3.70 firmware (Ya pushing for that to be upgraded ain't happening)
I had success taking the 3.70 firmware to 3.75 on the FlexFabric VC modules. The key was to upload the firmware non-parallel and initiate the reset of each module manually. Then during a low I/O time in our environment, I reset one module at a time. All I/O moved to the alertnate module as designed. The 4.01 modules were a new deployment, so no issue there.
Is Baytown near The Woodlands? I'll be there in October. I'll swing by and give you a hand!