Latest Samsung Galaxy S6 edge+ (AT&T) (SM-G928A) - ATT firmware
Samsung Galaxy S6 edge+ (AT&T) (SM-G928A) firmware for USA (AT&T) (ATT): 1 build in the SamMobile archive, newest first. The latest is G928AUCU6EVG2 (Android 7.0, built 26 July 2022). Open a build to download it, or switch region with the country selector.