Warning:Use at your own Risk! we will not be held responsible for any damage to your phone.
How to Flash:
o Download xxx.zip & cwm file and place in the root directory of your phone's sd card and turn your phone off. o Reboot in Recovery mode by pressing vol up+home+Power button together once you enter recovery mode touch screen become function-less so use volume up and down to move up and down, home button for selection and power as back button.
o Then go to mounts & storage second last option in cwm then select mount & storage then mount system
o Now in recovery mode select "apply update from sdcard" and navigate to the root directory of sd card and select cwm file "cwm-madteam-galaxy.zip" this will take you to clockworkMod Recovery
o As now you are in cwm mode select install update from sd card and Select the update file select "xxx.zip" and ok let the process to be completed.