A few days ago, Google released full flashable images of the Android 4.0.4 IMM76D builds for both the Samsung Galaxy Nexus and Nexus S handsets. Today, Google has released three more images, including Android 4.0.4 IMM76D sojua for Nexus S i9020A, Android 2.3.7 GWK74 sokua for Sprint’s Nexus S 4G D720 and Android 2.3.6 GRK39F sojuk for Korean Nexus S M200 handsets.
If something goes wrong with the flashable ROMS, these full images let you to forget your problems and start with a clean slate. Sprint version — model d720 or sojus — has the 2.3.7 image available as a "reference only" download.
head over to download the sojua 4.0.4 IMM76D for Nexus S i9020A, sojus 2.3.7 GWK74 for Nexus S 4G D720 and sojuk Android 2.3.6 GRK39F for Korean Nexus S M200 handsets. Or else you can grab them from the links provided here at below.
Android 4.0.4 IMM76D Factory Images "sojua" for Nexus S i90201A.
Android 2.3.7 GWK74 Factory Images “sokua” for Sprint’s Nexus S 4G D720.
Android 2.3.6 GRK39F Factory Images “sojuk” for Korean Nexus S M200.
Make sure the checksum matches before you proceed to flash these images on your handset.