My Dual Sim 640XL LTE has seen 50Mbps with 20 Mbps up load on ATT. In my area, ATT HSPA+ has always topped out 6-8 Mbps with max upload of 2 Mbps. The phone is getting LTE, no doubt in my mind. My phone came from Hong Kong, obviously they are more evolved there and do not need to see LTE to...