I have a Galaxy Nexus phone.
I want to install JellyBean manually, but I don't know which one of these I should download. How do I know if my phone is maguro, toro or toroplus?
Settings > About phone > Model number,
and see which one matches:
Edit #1: You can also check the back casing if it has Verizon (toro) or Sprint (toroplus) written on it. If not, then you have maguro.