How to Test and repair my Phantom Controller?

Hi my Phantom doesn’t talking any more with the controller, I have already upgrade last version of Controller board firmware but it was ontinuous without communication please help to identify where is the problem…

crwdns2934089:0crwdne2934089:0 crwdns2934093:0crwdne2934093:0

crwdns2934109:0crwdne2934109:0

crwdns2889612:0crwdne2889612:0 0
crwdns2934285:0crwdne2934285:0