unfortunately I flashed the firmware of Broadcom's 9460-16i (fw ver. 51.20.0-4482) on my RSP3TD160F. It is running fine but I would like to go back to the Intel firmware.
I found a post with a similar problem for RSP3DD080F Controller. I have tried the noverchk parameter but I'm still not able to downgrade to the latest Intel fw 51.20.0-4342.
I was able to to downgrade using Broadcom's firmware but when I'm trying to move to Intel's fw I'm receiving an error that this fw is not supported on this controller. I used LSA and storcli to flash it.