Default [Q] Will not update

Hi. Bit of a noob so bare with me.
Got the phone and it got the kitkat upgrade straight away. Then I unlocked the bootloader through the Moto site. All fine and well.
But for the past month there has been a new update which refuses to install. Did a recovery. Did a factory reset. Did a cache clean thing. In fact, did all possibilities. It will still not update. It did get the new Moto startup screen no bother, which was odd.

Should I flash new firmware onto the phone and would this take care of this update problem?

Thanks