I'm following this video but it's not working.

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http://androidforums.com – How to install STABLE CyanogenMod 10.1 Android 4.2.2 Jelly Bean on the Samsung Galaxy S3 / III - YouTube I followed this video exactly but when I rebooted it just came back with stock sense. I still have root access. Can someone recommend a better video for installing 4.2.1? (General)