I have a Samsung Galaxy S Epic 4g SPH-D700 that I dropped and broke the screen of. The screen is blank and I had not backed-up my contacts or calendar. It seems like it is fairly simple to replace the motherboard. If I switched the motherboard with another SPH-D700 I believe I should be able to access my contacts and calendar and back them up. Can someone tell me if my reasoning is logical or am I missing something?