2018 Screen Flicker Black Out

[Pete2018]

New 2018 12" screen starts flickering when we put it in gear. Get's so bad, the screen blacks out. They did software upgrade then 2 mins after putting back on the water the screen flickers and cuts out. Tried shutting down (batteries) and rebooting everything, but it keeps happening and getting worse. Only 85 hrs on this boat. Anyone had this issue? Resolution?

[KeepingupwiththeJones]

I had screen flicker problems on my 2015, turned out to be loose connections on the battery 1/2/off switch. 

[csleaver]

It could be a loose or faulty CAT6 cable from the Medallion controller to the screen.

[gregtay]

Likely a voltage issue somewhere in the system.

[604wakesurf]

My 2018 had the battery  1-2 switch mess up. Dealer replaced it 

Edited June 15, 2020 by 18vlxguy

[tco]

We had the same issue. Ended up being the alternator. Keep an eye on your voltage and make sure it is staying around 14 when the RPMs are up.