A few days ago my Nexus 4 offered me the update. I decided I'd wait until I got home and could download it while on a stable wifi connection. When I got home, there was no notification of update anymore. So, I went to settings / about phone and checked for updates and nothing showed up. The next day, it offered the update again. So, I accepted. The phone downloaded the update, but didn't install it. At one point it asked me to set my gmail address as a backup account. I accepted. Still no Lollipop. Any suggestions on how to get my phone to update?
BTW: I've rebooted the phone, still no update.