go to settengs next about phone
click 7 times build number
go to developer and click usb debug
and type *#0808#
select dm modem adb and set where is com usb serial port
and click unlock to your z3x tab.
29.6
after unlock done
after unlock nga pla ..tangalin ang batry at iopen ulit para magsignal po mga sir..
salamat po.. for ref po lamang