Unfortunately if you are rooted, you aren't allowed to update. I can't check for updates for around 20 hours now. Is it Android 5.1? Nothing on xda forums about it yet.
I guess I can try unrooting it tomorrow. It looks like a pain in the ass too. Oh wait, my call blocker requires root. Might be a way to get a stock ROM zip file to update using a custom recovery. Have to wait for somebody to make one.