Root Galaxy S3 SGH-i747M (Andr. 4.4.2) without computer?
calm down dude :)
use this ,or
 download from chain fire


  checksum: 3477ce82bac9930198c562f769c95774


then add to pda on odin then flash.
this is good method with computer, and without computer i think it doesnt work.
goodluck.