So, I'm new to rooting, and installed clockwork mod just fine and then tried to use this article to update to Jelly Bean. Now I'm stuck on a boot loop. Any advice?
Go to www.sammobile.com . Make a account. Its free. Search i727.Download the att ics .tar file. Remove phone battery and reinsert. Boot into download mode. Open Odin. Go to PDA and find your .tar file u downloaded. DO NOT HIT REPARTITION. Flash. Now ur back to stock.
Under no circumstances am I responsible if something goes wrong with your phone but this is how I did it. Read the forum link I gave u before trying it out. It goes into more detail.