Samsung s3 gt i9305 root usa model for this the root is little time consuming after root superuser wont work don't worry just goto playstore and upade super use else process is simple like old way.
Driver Download first install them
Download root package unzip it open odin click ap and start it
wait till phone restart open meu you ill find super user app means phone rooted if super user wont work update it from play store
Driver Download first install them
Download root package unzip it open odin click ap and start it
wait till phone restart open meu you ill find super user app means phone rooted if super user wont work update it from play store