Samsung Galaxy S8 (SCV35) firmware for Japan (AU KDDI) (KDI): 5 builds in the SamMobile archive, newest first. The latest is SCV35KDU1AQL2 (Android 7.0, built 4 December 2017). Open a build to download it, or switch region with the country selector.
We recommend using Samsung’s own utilities, Samsung Smart Switch and OTA (Over-the-air), to upgrade devices. Use SamMobile only if you are 100% sure about the risks involved in flashing
your device. SamMobile is not responsible for any damage caused by using the files on this website.