Samsung Galaxy Note Keeps Restarting

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http://forums.androidcentral.com – Hey guys im new to this site so im not too familiar with this but i am hoping you guys can help me. I have my Galaxy Note i717 that i recently bought off of someone. Everything was working great until it started restarting. It will just restart on its own. And i realized now that its a pattern. It will restart after the 3rd time i lock the phone. After that it restarts. So i was looking around and i found out that the phone was rooted. Not knowing much i searched up on Youtube own how to unroot thinking that was the problem. So i unrooted the phone and i tried going back from ICS to GB which (HowTos)