J2 prime(G532G) ROOT & UNLOCK Success with z3x box
Download root file from HERE and extract it.
Go to setting>about phone>software info>tap 7 times on built number to get developer option.
Return back setting and open developer option.
Tick OEM unlock and USB debugging then connect mobile to the PC.
Run ROOT-ENGLISH.exe .
Type YES to install USB driver, if u have already type NO and enter.
Wait a second mobile goes to download mode and open ODIN automatic.
Choose root-boot file from AP and flash it.
Wait for complete.Mobile reboots.
Open super SU and update it if needed.
Now your device Rooted successfully.
Open Z3x pro tool and unlock it. Its tested in G532G only. Try other model of J2 prime at your own risk.