Anyone using this ROM or any other stock JSS15J ROM, try this: open up Google Now, do a refresh. Scroll all the way down. Do you see a card about turning on location services? Tap the settings button, then check everything. Make sure Google apps have location access as well. Go back, refresh. The card is still there. There seems to be some sort of bug in JSS15J ROMs that prevent apps from using network location. Same thing for maps, if you open it, it usually gets a very rough location using cell tower triangulation before locking on to GPS. Now it just shows a blank map because it cannot get your rough location. Wait a bit, and when GPS locks on things return to normal. The only ROM to not have this problem is CM 10.2 (unofficial build by Carlos_Manuel). I also know it's not a gapps problem because the same gapps pack works fine on that CM 10.2 build without this issue. Also, no problem on JWR66V. Could it be because JSS15J was meant for the N7 (2013)? I've heard someone say this before, and that JSS15J causes some problems with non-new-N7 devices. The ROM is also noticeably more stuttery than JWR66V. Did a clean flash, same procedures as I would normally clean flash any ROM (including previously mentioned JWR66V ROM).
so now I have a successfully working gnex PLUS my new nexus 4 
