I had the same issue back in February and I took my phone into my local Sprint Store and they performed some basic test right in front of me and about 10 minutes later, they had a new phone ordered for me. I guess I really lucked out. The charging port was DOA and they didn't hesitate to order me a new phone. I hope I get the same luck if this issue happens again, which it probably will. By that time, hopefully I'll have my new EVO 3D so no major worries!
