[Q] HELP: need to revert back to stock android! topic

Hey there XDA I am currently running CM 10 and I need to bring my VZW GNote 2 back into the store to do a trade in but I don't know how to get stock android back on to my phone. I tried to find a flashable zip through google but i couldn't find one and I also don't know how to use ODIN so if anybody could please give me a tutorial or point me to one I would greatly appreciate it! I also don't know of a way to unroot my phone.

Thanks!