Samsung Galaxy J3 Aura (SM-J337R7) firmware for Nextech / C-Spire (ACG): 2 builds in the SamMobile archive, newest first. The latest is J337R7WWUABUJ2 (Android 9, built 5 October 2021). 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.
