Hello, I just bought a Hongmi Note 2 LTE (the 32 GB China Unicom variant), and for some reason, the only "Preferred Network Type" option I see, despite having a Unicom 4G plan, is listed as "2G only (saves battery)". I was using a different 4G phone on this same plan (an international Samsung Note2 LTE), able to access 3G and 4G with no problems. The data connection icon in the notification bar is listed as "E". Any ideas/suggestions/explanations?