Downgrade FW

I have a server that is stuck on a pending state of updating yet it never finished after I updated the server infrastructure and server firmware on the Fabric interconnects.

Can I downgrade my infrastructure (FI/IOMs/FEX/etc) without any issues? I want to do this because it was working just fine in the previous version.

It's on 4.0 (4n) but want to revert to 4.0 (4i).