I'm going to replace my Galaxy s4 screen. I just want to know if the gsm/cdma matters. I have US Cellular and I want to know if there are any internal differences between carriers. I've tried looking up teardowns and schematics but haven't had much luck. It seems to be a general internal layout. Could I get a sprint galaxy s4 and use *just* the digitizer/lcd assembly in my USC galaxy s4?