seadoo wake

I can’t start my Seadoo wake pro after turning the engine off to drop someone off at the dock. When I go to start the engine, the screen blinks on and off a few times. I pulled it out of the water and charged the battery, but it still doesn’t work. Anything else I can try to do to fix it?

I launched my Sea-Doo Wake 210 this morning to test the synchronization issue I had fixed. I decided to leave the boat in the water for the day as I was planning to use it again during the afternoon. When I got back to the boat, the whole engine bay and bilge were full of water, submerging the...