Latest Samsung GALAXY LIGHT (SGH-T399N) - TMB firmware
Samsung GALAXY LIGHT (SGH-T399N) firmware for USA (T-Mobile) (TMB): 1 build in the SamMobile archive, newest first. The latest is T399NUVUAOH3 (Android 4.4.2, built 25 August 2015). Open a build to download it, or switch region with the country selector.