First download muna firmware tapos open z3x pro select correct model then load firmware then press flash...
Firmware:https://firmware.gem-flash.com/index.php?a=downloads&b=file&id=71105 pass:www.gem-flash.com...
Firmware:https://firmware.gem-flash.com/index.php?a=downloads&b=file&id=71105 pass:www.gem-flash.com...