You can email buzz with your device id and firmware version They can send the update to your buzz Cs@buzztv.com
You could also try factory set and try for buzz 5 again but you will lose all info
To update your box go to home page ,settings and check for updates When it tells you there is no update type in 2015 on your remote
After update is installed wait 5 10 until all apps are installed by buzz 5 software