root and unlock galaxy s4 9515

download

root file
cert

need z3x box

connect device into download mode

run samsung tool

and select like dis

select 9515 from model

after flashing root file

update su binary

connect device with usb debugg on

dial *#0808#

and select dm+modem+adb

then select port

and do a wipe efs

write my new cert file

congrats...!!!

now ur done

u need change usb mode again to default for using file transfer with pc