Question#1 What are the risks to performing this?
Question #2 How do I backup the entire phone so I can restore it like it was when I opened out of the box from AT&T? (even after a hard SPL)
Question #3 If I need to return the unit for any reason back to AT&T, would I be able to do this after flashing the ROM and performing hard SPL ? Or will they detect this has been done and deny me?