I know this will sound crazy but I don't know how to tell if my phone is rooted. It started this week when my OTA's would not download. Then i remembered that every time i had the option, no update ever took place. I'm on ERD79 currently and on restart i have the unlocked symbol. I want to get the new build but don't know where to start as I'm way too new to this. I bought the phone from someone else who had it to start with. Any and all help would be appreciated! Thanks in advance!