A:Answer The Mate 9 is unlocked for U.S. GSM networks. But we advise that you check the provided bands with your carrier, before your purchase, to ensure the device works with in your country (CB) MHA-L29 SIM1: 4G TDD LTE: Band38/39/40/41(100MHz) 4G FDD LTE: Band1/2/3/4/5/7/8/9/12/17/18/19/20/26/28/29; 3G UMTS(WCDMA)/HSPA+/DC-HSDPA: Band 1/2/4/5/6/8/19 3G TD-SCDMA: Band34/39 CDMA EV-DO Rev. A: BC0(800MHz), only for China Telecom 2G GSM: 850/900/1800/1900MHz SIM2: 3G UMTS(WCDMA): Band 1/2/4/5/6/8/19 CDMA: BC0(800MHz),only for China Telecom 2G GSM: 850/900/1800/1900MHz MHA-L09: 4G TDD LTE: Band38/39/40 4G FDD LTE: Band1/2/3/4/5/7/8/9/12/17/18/19/20/26/28/29; 3G UMTS(WCDMA)/HSPA+/DC-HSDPA: Band 1/2/4/5/6/8/19 3G TD-SCDMA: Band34/39 (CB)