Oh, sorry. Can't help you. If you check the connections and all is good, you should call the manufacturer and get a replacement. They have excellent customer service. They got me the next model, the iRV34 which has upgraded software. They got it to me in like 2 days.
2016 Roo 21SS
2005 Ford Excursion-Sherman
Mods so far:
PI hardwired EMC, Wire Shelving in wardrobe
Plexiglass screen door protector, Blue LED Wine nook
stairs, and counting...