Samsung Epic 4G is Sprint’s version of the Samsung Galaxy S. It is the first official release in the Samsung Galaxy series. It has 1 GHz processor and 512 MB of RAM. It features a full QWERTY keyboard and ships with a 16 GB micro SD card to upgrade the internal memory. The Epic 4G is preloaded with Android 2.1 Eclair and can be upgraded to Android 2.3 Gingerbread. The Epic 4G is the only version of the Galaxy S that features a notification LED.
Samsung Epic 4G is an old device and Samsung has stopped the official support since long. However the CyanogenMod community is continuing developing new ROMs for this device and the CM 11 custom ROM running on the latest Android version is available for this device. Follow the instructions given below to install it on the Epic 4G.