i Unlock Frp by z3x Success.
here the solution
1 download combination file in z3x support
2 select combination file in z3x tick only preloader & boot
3. flash done then goto recovery mode then wipe ur phone.
4. after reboot reset frp in z3x.
5. phone ask authorise this computer screen then allow this computer tick then ok
6. then see the z3x frp done.
7. then select start button in phone. then next next phone will boot in to normal mode.
8. then goto settings enable developer mode enable oem unlock then goto factory reset.
Finish. i done this method success.
Download Link http://eunsetee.com/4fQF