Updated my sync 3 to 3.4 and have working calm screen and radio station logos system boots faster and goes through the menus a lot quicker I love the night mode view
this isn’t something everyone can get doing as some firmware files need changing to get logos and calm screen working and you can’t do that with usb updates. This version also has changeable wallpaper but only from 4 pre installed wallpapers.
Anyone wanting this installed prepared to travel to me(Thurrock) it takes around an hour to install £40