Latest Samsung GALAXY S4 (SM-S975L) - TFN firmware
Samsung GALAXY S4 (SM-S975L) firmware for Tracfone (TFN): 1 build in the SamMobile archive, newest first. The latest is S975LUDUANB1 (Android 4.3, built 4 February 2014). Open a build to download it, or switch region with the country selector.