Connext screen 2018 fsh210

[nickdime1]

My connext screen won't come on at all and the tachs are bouncing. Problem occurred once last season and several times intermittently this year. I've been chasing ground wires all morning looking for something loose with no luck. Everything else functions perfectly. Anybody have any ideas?
Thanks

 

[Maillis]

It happened to me at the beginning of an outing last year at once but after running for a few minutes everything came back just fine. I think it may have been a low voltage issue but luckily it hasn’t happened again since.