People always ask me, “Max, do I need to unroot to take OTA?” Well, the answer is yes and no.
If you are rooted, there’s usually rooted OTA custom ROMs you can flash in ClockworkMod Recovery (usually within 24 hours) of the update, which allows you to easily update to the OTA and keep root, settings, and apps.
So, here’s Jelly Bean rooted ROM 4.1.1 for all Galaxy Nexus variants including GSM, Sprint, or Verizon. And if you ask me which version of Galaxy Nexus you have, you either have Sprint or Verizon. If you don’t have Sprint or Veriz