[Q] Samsung Galaxy S3 KOREAN too much pattern attempts *LOCKED* NEED HELP topic

I have a Samsung galaxy s3 korean which my brother gave me to fix, it was locked due to too much pattern attempts. i tried to look up how to go to recovery mode, it says Vol Up + Home + Power . but it doesnt seem to work. i tried another method which includes downloading some adb files, running cmd and typing some codes which basically tries to remove the gesture.ket from settings database, but this also didint help. i tried to wipe data on ADB, but i need root access, which i dont have in it.

So, any idea how i might fix this Samsung Galaxy S3 Korean ?