SAMSUNG S4 GT-I9515 UNLOCK FREE

SAMSUNG S4 GT-I9515 UNLOCK FREE

Tested Cert:

link

Procedure

Phone must be rooted using this root file
Turn on phone
Go to setting developer option

ennable usb debugging
Go to dial window,type

 *#0808# select.DM+MODEM+ADB
Connect phone to pc,install drivers if needed.
In Z3X software (check skip backup restore NVM

Tick wife EFS
Last write CERT and wait writting complete

but imei will change .....free free