How do I install Android 5.1.1 on my phone? I checked for updates but nothing came up.

[AC Question]

I have been trying to figure out how to install Android 5.1.1 on my phone, but I can't figure out how...
I tried going into settings, about phone, then i checked for updates, and nothing came up. Can anyone help me?

 

[Laura Knotek]

Which phone do you have, and which carrier version is it?