In the past two weeks I installed a new Xi5. Of the four status lights, only the far right light would go on. That's the battery indicator. Yet, with the TM deployed, I could get power, turn left/right, and the GPS was working as I test with 'Course' on the remote and it would turn the head. So I knew it was working but no lights for 3 of the 4. Having dangerous knowledge about electronics, I called MG about the 'seating' of the lights, like a memory board on a computer. They said it could be that and assured I wouldn't be breaking the warranty if I were to remove the side panels, lift the status lid and check it. I also called the place where purchased and asked the same thing. They said the same thing but provided better instructions on the light ribbon. The light ribbon connects in two places. Of course, I checked and reseated the one that didn't need it. Then I followed the ribbon to the bottom of the status area, and reseated it. All lights came on. There was another plastic flange like thingy that was loose. Fortunately, I had the original Xi5 and saw how it should be installed. I put it all back together and have since been on the water with everything working as is. The original installer just did a sloppy job. I'm hoping over time, the rest of the factory installation was done correctly.
I don't know if this is the same problem you're having. I hope it helps.
LIVE PURPLE LOVE GOLD