procedure:
* open z3x pro
* select correct model
* put into dl mode and flash using combination file ( download this file in z3x support COMBINATION_UUB_FA51_J105BUBU0APB2_UUB0APB2 )
* after that you must reset the phone and proceed to flash using this firmware J105B_DXU0APC4_OLB0APC2
first flash using combination file
second flash using firmware
* open z3x pro
* select correct model
* put into dl mode and flash using combination file ( download this file in z3x support COMBINATION_UUB_FA51_J105BUBU0APB2_UUB0APB2 )
* after that you must reset the phone and proceed to flash using this firmware J105B_DXU0APC4_OLB0APC2
first flash using combination file
second flash using firmware