How to Flash CyanogenMod 9 nightly build on Samsung Galaxy Nexus GSM/CDMA

Things to know first

• Rooting voids your Gadget's warranty.
• We are not at all responsible for damages caused to you or your Gadget while you follow our instructions.

Requirements

• First download the most recent CyanogenMod 9 nightly build for your respective phone and save the zip file on your computer.

1. Click here for the CDMA variant of the Galaxy Nexus.
2. Click here for the GSM variant of the Galaxy Nexus.

• A rooted Galaxy Nexus with ClockWorkMod Recovery installed. Here is the guide for rooting the Galaxy Nexus CDMA and installing ClockworkMod Recovery.
• Temporarily close all system tools such as Samsung KIES, antivirus software, and firewall programs before flashing the ROM.
• Make sure that battery is at least 70% or more.
• Create a backup of all your data.

Step by Step Instructions

• First of all, connect the Samsung Galaxy Nexus to the computer using a USB cable.
• Now copy the CyanogenMod 9 package into your Gadget’s SD card.
• Disconnect the phone from the computer.
• Switch off your mobile phone.
• Now reboot your phone into bootloader mode by pressing and holding both the Volume Up and Volume Down keys simultaneously while tapping the Power button.
• Once in bootloader mode, use the Volume keys to navigate to “recovery” and tap the Power button to start recovery mode.
• Next select Backup and restore > Backup to create a backup of your current ROM.
• Go back to the main menu and perform a full wipe by doing the following:

1. Select “Wipe data/factory reset” and confirm the action on the next screen.
2. Select “Wipe Cache and confirm the action on the next screen.
3. Go back to the main menu and select Advanced. From there, select “Wipe Dalvik Cache” and confirm the action on the next screen.

• After performing a full wipe, go back to the main menu and select “install zip from sd card” and browse to “choose zip from sd card” and select the CyanogenMod 9 ROM you have saved on the phone’s SD card. Select Yes to begin flashing the ROM on your phone.
• Return to the main menu and select “Reboot system now.” This will restart your Galaxy Nexus with the new CyanogenMod 9 ROM.

Voila! You have successfully flashed CyanogenMod 9 nightly build on your Samsung Galaxy Nexus.

Good-Luck !