Latest Samsung GALAXY Ace (GT-S5830G) - SER firmware
Samsung GALAXY Ace (GT-S5830G) firmware for Russia (SER): 1 build in the SamMobile archive, newest first. The latest is S5830GXXMD1 (Android 2.3.6, built 16 April 2013). Open a build to download it, or switch region with the country selector.