GOLDBERG ZAP FX1 MT6592 Firmware V 4.4.2 100% Tested by RS_UNLOCKER August 30, 2016 GOLDBERG ZAP FX1 MT6592 Firmware V 4.4.2 100% Tested by RS_UNLOCKER A+ A- Print Email GOLDBERG ZAP FX1 MT6592 Firmware GOLDBERG ZAP FX1-Flash File GOLDBERG ZAP FX1-Firmware Download