BLU Advance 4.0 L3 was officially announced in January 2017, Device released in January 2017Mobile Network Support and BandBLU Advance 4.0 L3 have Dual Card Slots,BLU Advance 4.0 L3 support all GSM Based network providers. BLU Advance 4.0 L3 mobile device support 2G Band Frequency at GSM 850,GSM 900,GSM 1800,GSM 1900 and Hight Speed 3G Network Band at HSDPA 850,HSDPA 1700,HSDPA 1900,comes with network handling support with Network settings and work offline with flight