*Network (Official Standard)
GSM,GPRS,EDGE,WCDMA,LTE
4G:B1/B2/B3/B4/B5/B7/B8/B12/B17/B18/B19/B20/B25/B26/B28A/B28B/B38/B39/B40/B41/B66/B71
3G:B1/B2/B4/B5/B8
GSM: 850/900/1800/1900MHz(B2/B3/B5/B8)