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Nexus S CM9 ROM By Koush Ported To Nexus S 4G [Download & Install]

ICS For Nexus S 4GEarlier we covered a post on the CM9 released for the Nexus S by Koush. Based on the Ice Cream Sandwich OS, the CM9 for the Nexus S was actually an alpha release by Koush – who is actually working on the CM9 project for the Nexus S – and will soon become the official CM9 release for the Nexus S. Now Team Liberty forum member mobile_sensei has managed to port that very ROM onto to the Nexus S 4G. but of course, there’s also the addition of the scripts and tweaks that are found in Liberty ROM. Credit also goes to jrummy16, Kwiboo, aosp and BrainMaster.

The ROM according to the feedback on the forum thread at RootzWiki, is running smooth and fine without any hiccups so far, with users reporting an over all faster OS. So if you wish to give this ROM a try, let us show you how to get this ROM up and running on your device.

Disclaimer: Please follow this guide at your own risk. AddictiveTips will not be liable if your device gets damaged or bricked during the process.


  • A rooted Nexus S 4G. See our guide on rooting the Nexus S 4G.
  • ClockworkMod recovery installed. Install via ROM Manager from the Market.
  • ICS AOSP ROM with Liberty Elements.


  1. To begin, download the ROM and copy it to the root of your SD card.
  2. Reboot the device into recovery and make a Nandroid backup.
  3. Select wipe cache and wipe dalvick cache.
  4. Navigate to install zip from sdcard > choose zip from sdcard and select the zip file.
  5. Once the file is flashed, simply reboot your device.

For updates and queries, head over to the forum thread at RootzWiki.

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