The Samsung Nexus S is Google’s second Nexus device. It was the first Android phone to feature a curved glass screen, which carried over to its successor, the Galaxy Nexus. It was also the first Android device to feature Android 2.3 Gingerbread, which has since been updated officially to 4.1 Jelly Bean. Inside, it has a 1GHz single-core Samsung Hummingbird (retroactively renamed Exynos 3 Single) processor with half a gig of RAM. It’s available with 16GB of storage, and it lacks the option to add a microSD card. The display is uses Super AMOLED technology, and features a WVGA resolution with a PenTile matrix like its predecessor and successor.
Although this phone is pretty old, XDA members have continued with it’s development. The CM 10.1 ROM is available for Nexus S which runs on the latest Android 4.2.2 version. Follow the instruction given below to install it on the Nexus S.