Latest Samsung Galaxy Core (SHW-M570S) - SKT firmware
Samsung Galaxy Core (SHW-M570S) firmware for South Korea (SK Telecom) (SKT): 1 build in the SamMobile archive, newest first. The latest is M570SKSUAOH1 (Android 4.2.2, built 25 August 2015). Open a build to download it, or switch region with the country selector.