I have a Samsung Galaxy Note 3 N900 ATNT, and its been several months and I haven't got the Andriod Lollipop Update. In the device status it says "custom". Also, when I boots up my phone, with the phone name, there is a symbol of an unlocked lock, and the words "custom" under it. I wonder if that has anything to do with my phone not being able to install the new update. I bought my phone used from Ebay, and the previous owner had rooted the phone. Today I found out it was rooted and unistalled root after trying out some root apps. Now, my phone is unrooted but it still says "custom". What should I do to get the new update?