Ultimately I want to use the KitKat 4.4.2 ROM from another country on my LG G2. I bought my phone in China and it doesn't have Google Services authorized on it, which makes the phone pretty crappy. Unfortunately it is already updated to KitKat and unrooted, so I need to downgrade it to Jelly Bean, then root it and then install the European ROM in order to get Google services enabled. Anyway, that's my plan, but I'm open to alternatives if you know of any.
Thanks in advance for any help with this.