Samsung provided great features and powerful hardware with Samsung Galaxy S I900 at the time of its release. Although the GPU and the 1 GHz ARM A8 processor is capable to run some of the latest operating systems and softwares but Samsung has always been reluctant to provide official support for this device. Thanks to the CyanogenMod team which provided us with the Android JeallyBean 4.2.2 ROM for Galaxy S I9000. We highly recommend using this mod to benefit from the hardware of this device. Following are the instructions to install JeallyBean on your device.
Installing ROM
Backup your device with ClockWorkMod (link: http://www.clockworkmod.com/rommanager)