Hey folks... Here is my dilemma: I have a Galaxy S3 originally from Sprint. I had it flashed to Boost Mobile and rooted. I keep getting a message about an update 4.1.2. I emailed the company that flashed my phone (flashedphones.net) and they did a pretty good job, but they say that if I do the upgrade my phone may revert back to Sprint...which obviously, I don't want. They suggest I put in a custom 4.1.2 rom. Which rom pretty much works exactly like the stock rom except just better and won't mess with the Boost flash? Thanks for the help in advance.