Samsung Galaxy J1 2016 (SM-J120M) firmware for Brazil (Oi) (ZTR): 5 builds in the SamMobile archive, newest first. The latest is J120MUBU2ARE1 (Android 5.1.1, built 17 May 2018). 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.