Nokia is currently in the process of releasing a bugfix update for the Nokia Lumia 1520 that is meant to address various issues with the device found since its release. The releases are tagged 1028.3534.1347.2001 for the US while in Europe, the new version is 1028.3562.1402.00xx. There is currently no detailed changelog for the update, other than being labeled “General fixes and improvements (General performance and usability improvements)”.