Oppo A30 was officially announced in January 2016, Device released in March 2016Mobile Network Support and BandOppo A30 have Dual, (Nano Sim) Card Slots,Oppo A30 support all GSM Based network providers. Oppo A30 mobile device support 2G Band Frequency at GSM 850,GSM 900,GSM 1800,GSM 1900 and Hight Speed 3G Network Band at HSDPA 2100,Oppo A30 also support LTE based 4G Networks Support at Frequency level LTE 700,LTE 2100,LTE 800,LTE 1800,LTE 2600,LTE 850,LTE 1700,LTE