Samsung J500G/DS FRP DOne
1.Open Z3x
2.Select Model J500G/DS
3.Select Unlock
4.Select your Port for me Port Com1
5.Then Click Reset FRP/ React/EE and wait to finish
http://i65.tinypic.com/2059l38.jpg
Finish Product
http://i66.tinypic.com/9jzzpu.jpg
Last step you need to factory reset your mobile to complete the remove frp.