Question How to return to stock VS980 Verizon

I need to turn in my LGG2 because Im doing a edge up for another device. How do I return this to stock? I have a back up of 4.2.2 can I just flash that and get away with it or do I have to return to 100% stock? I know with samsung its just ODIN back. How hard or easy is it for LGG2?
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