Latest Samsung Galaxy J7+ / Galaxy C7 (2017) (SM-C7108) - CBK firmware
Samsung Galaxy J7+ / Galaxy C7 (2017) (SM-C7108) firmware for Unknown (CBK): 1 build in the SamMobile archive, newest first. The latest is C7108ZMU1BSB2 (Android 8.1.0, built 25 February 2019). Open a build to download it, or switch region with the country selector.