ZTE Optus X Pro LTE P650 Pro Australia 402520B1182P650 OPT AU Z6351OV1.0.0B11 DL SPD Firmware BY firmware.gem-flash.com
ZTE Optus X Vista Z6621O AU Z6621OV1.0.0B19 DL SPD Firmware BY firmware.gem-flash.com
ZTE Optus X Vista Z6621O OPT AU Z6621OV1.0.0B19 DL SPD Firmware BY firmware.gem-flash.com