Windows Phone 7.5 build 7720 (WM7 UXPlatform Dev i(ltsian))

Windows Phone 7.5 build 7720 (WM7_UXPlatform_Dev_i(ltsian)) is an unconfirmed build of Windows Phone 7.5, which was uploaded to the Chinese website BetaWorld on 25 March 2023. It was claimed to be found on a LG GW910 prototype.