I have 2 phones on my account. One is a HTC Evo Shift 4G and the other is a LG Optimus S. I have been told my multiple Sprint reps that there are siganl issues in my area( Northen Michigan, 48763). Now the thing I find puzzling is that anywhere I go the LG Optimus has perfect signal with no roaming and the HTC is always jumping in and out of roaming or has no signal at all. This is puzzling and I would like some awnsers.