How to Install Cyanogen MOD 9 in Samsung Galaxy Nexus S

Sanjana January 16, 2012 0

Samsung Galaxy Nexus S has finally come up with the much awaited Cyanogen Mod 9. This new firmware is also known as ICS Android 4.0 version as it carries the goodness of ICS in it. According to recent reports, Cyanogen Mod 8 was reserved for Honeycomb development but as it got poor response for the Honeycomb release, the Cyanogen mod team had to skip CM 8 and began developing Ice Cream Sandwich Android 4.0 that is the actual future star. The only issue is that since it’s an Alpha port, some of the functionalities don’t work. It is to be noted that rooting will void the warranty but you can reclaim back the warranty by re-applying the original or default firmware that

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is present in your phone.

google nexus

We wont be responsible for any harm caused to your device during the updation procedure that is unlikely to happen if you follow the instructions carefully. The updation procedure is not recommended for basic users but is for advanced users and is only applicable for Nexus S smartphones that are network unlocked. Do not apply it in any other device as it might not be reversible and may harm the device by blocking it.

Let’s take a look at some of the features that work.

Operational Features:

  • Keyboard
  • Google Wallat
  • Network, USB Mount, USB Tethering
  • Data usage stats and data limits feature are successfully ported
  • Calendar has been synced
  • Missing apks has been fixed
  • Pinch to zoom works


You must backup all user data present in your phone since chances of data loss or corruption are there. Having a backup can help you replace the lost data if any damage occurs. Follow the link posted below to backup and restore all your data easily.

Pre Upgrade Instructions for Rooting and Firmware Update

Must Have:

Download Cyanogen MOD 9Download Google Apps

Steps to Update Samsung Nexus S with Cyanogen MOD 9:

Step-1: Enable USB Debugging from the path “Settings > Applications > Development > USB Debugging”.

enable usb debugging

Root your Samsung Nexus S first then download Cyanogen MOD 9 followed by Google Apps from the Must Have section to your computer. After downloading both files to the computer, connect the smartphone via original USB Cable obtained at purchase time and copy the downloaded zip file to your phone’s SD Card without renaming or modifying it. Do not place the files deep in any sub-folders else it won’t get detected.

Step-2: Power off your phone to enter into Recovery mode by pressing Volume up key and Power button simultaneously. In Recovery mode choose “Install zip from SD Card” and a list of files will be displayed in your phone. Select the file named as “” then select ““ file.

Step-3: Now wait for the updation process to complete and after it completes you will again land up in Recovery Mode screen or your phone will restart. If the phone restarts, you will run on ICS Android 4.0 version. In Recovery mode choose “++++Go Back++++” then “Reboot system now” option to reboot the phone. When the phone restarts, you will run on Cyanogen MOD 9 build of Ice Cream Sandwich Android 4.0.

reboot system now

Step-4: When your device is successfully updated then power off your phone to enter into Recovery mode by pressing Volume up key + Menu button and holding both press Power button simultaneously. In Recovery mode choose “Wipe data/Factory reset” then “Wipe Cache partition” to clear all cache data present in phone.

Thus you can easily update the latest update of Cyanogen MOD 9 Android 4.0.1 in your Galaxy Nexus S phone by following the steps mentioned above carefully.

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