how to install twrp + root+ unlock sim 1 for j3 pro 2016 (j3119)

download twrp at link below description, after that turn off your phone and boot into download mode by press and hold same time down volume + power + menu button, then press once time with up volume button. and done it by odin.
After it's done, you can into twrp by press and hold same time: up volume + power + menu button.
Install supersu: in twrp mode, you choose reboot, your screen show: swipe to install supersu. You must do it. Then it'll restart, you can see shorcut supersu, In other to use it, you should to update it in CHplay.
Unlock: you down application with name: Phone info *Samsung*,