Cracked screen--Bought replacement--Dies when I swap
I have a black SPH-D710 on Sprint. I cracked the screen, so I bought a white replacement on eBay without the battery or most of the guts.
I took the phone apart and swapped the screens and reconnected the boards and it powers up great... except that I have no service. If I connect back to the cracked screen, it powers up great and I get great service. I was hoping for a quick and dirty swap, but it seems like there must be some code in the screen-side circuit board that is foiling my attempt. I found this video [goo.gl/YNLZE -- xda won't let me post links, yet] where the guy seems to suggest that my problem is the IMEI, but I don't have the first clue about trying to find that in the old part and moving it to the new one, if that's even the problem.