Ice Cream Sandwich Official Update On Nexus S

  1. Download the official Android 4.0.3 ICS zip file.
  2. rename it from ‘‘ to ‘’.
  3. Copy/Move the file to the root directory of the target Nexus S.
  4. Power off the Nexus S.
  5. Power back up while holding down the Volume Up button, followed by the Power button.
  6. Using the Volume keys on the phone, navigate to the RECOVERY option and select using the Power button.
  7. You should now be seeing an exclamation mark on the screen, don’t be alarmed this is normal. Now hold down the Power button followed by the Volume up button.
  8. You will now be into your Nexus S recovery menu. Select the update from SD card option, select the ‘’ file you placedon the phone, press the Power button to confirm the selected update.
  9. Once you’re done, select the ‘reboot system now’ option and you’ll boot into Android 4.0.3 Ice Cream Sandwich.


Job Done!!