Lost connection to QGC & no audible connection

I was loosing “manual connection” so updated to the new software, after this update I have lost communication to the ROV & there is no audible connection either.
Does this mean I need to open it up & do something to the RP ?
I have two IP cameras on the ROV & they are still working to a NVR unit if that helps…
I have tried the PING sonar also and no connection to that also.
Thoughts ?


Inserted a new micro SD with the latest software & rebooted on the ROV. All works again now, just need to re-configure everything again