This Firmware flash for Samsung Galaxy A7 Duos with the Model Number is SM-A700H. Firmware Region is Vietnam and CSC code is XXV . Make sure the Model Number are correct with you device. You can check the Model Number in Setting - About phone (Model Number), If phone can't start you can find it by flipping your phone or among the things you found in the box. This Firmware PDA is A700HXXS1CPL1 with OS Marshmallow(Android 6.0.1) and the Firmware are build on Wed 08 Feb 2017 11:37:20 am.