Believe me, you do not want Lollipop. I fought it for a week, got a few things working. It will now send and receive texts with attachments, but aside from other problems too numerous to mention, yesterday afternoon it muted itself so no one can hear my voice, and it won't unmute. Neither Motorolla Support nor AT&T support has a clue how to fix this thing, but they both agree that I cannot successfully root it and go back to KitKat.
Today I gave up and put a SIM in an old Samsung. It is slow, but it works great.