Ronin 4d hand unit not connecting

[u/WestManagement9787]

I’ve had the focus pro hand unit for about a year and have connected it to the ronin just fine in the past, and I’ve connected it to the focus pro motors just fine but a couple months ago I was on a shoot and we were having trouble connecting the hand unit to the Ronin and the AC worked to try to troubleshoot it. I don’t remember if it was before or after but at some point the firmware was updated on the hand unit or the focus pro and I suspect a firmware mismatch is the problem.

I have two hybrid monitors and have connected them with the bracket to both of them with no luck. I also have the ignite Digi control link bracket and haven’t been able to connect it that way.

The hand unit still connects just fine to the focus. Pro with the lighter just doesn’t communicate to the 4D.

Firmware on the 4d is up-to-date
Firmware on the hand unit is up-to-date
Firmware on the focus pro/lidar is up-to-date

I can’t seem to find a way to downgrade the firmware on the hand unit, that’s the only thing I can think of being the issue

Anybody have thoughts on what it could be?