[gfhammer]

I dropped my mogul in the water and it wouldnt power up either. Then when it dried out it did the same as you described and shut down before getting running. I took the battery out put it on top of my dash in the car, cranked the heat and fan on the defrost for the windshield, got it hot for about 20 mins. After the second time of doing that I could it get it to power up, but the keyboard never worked I took it back got a new one at no cost. Hopefully you can do the same and flash back to stock.