Update My Nexus S to CM 7.1

Below are the steps I took to upgrade my Nexus S to CM 7.1 recently.

1. Step 1: Download the update-cm-7.1.0-NS-signed.zip file of CyanogenMod 7.1 for my phone. 
2. Step 2: Transfer the .zip file to the root folder.
3. Step 3: Turn off my phone once the transfer is complete. 
4. Step 4: Boot into ClockworkMod Recovery mode by holding volume up and power buttons.
5. Step 5: Using the volume up/down (to navigate) and power key (to select), then navigate to backup and storage > backup. 
6. Step 6: From the main menu: install zip from sdcard > choose zip from sdcard > update-cm-7.1.0-NS-signed.zip
7. Step 7: Once flashing is complete, reboot and it is done.

CyanogenMod 7.1

Root Nexus S Android 2.3.3 Gingerbread using SuperBoot

Just found another article on how to root Nexus S Android 2.3.3 Gingerbread using SuperBoot.

This is a much simple way to root your Nexus S. Just want to share here.

• http://www.technobolt.com/2011/02/28/how-to-root-nexus-s-android-2-3-3-gingerbread-using-superboot/

Rooting Nexus S on Android 2.3.3 Gingerbread

After I unlock my Nexus S, I need to start rooting it in order to get full permission to the filesystem.

Here's the steps that I followed:

• Reboot Nexus S into bootloader mode. To do so, use the following command at terminal or press the Volume Up + Power key simultaneously.

adb reboot bootloader

• Unlock the bootloader using the following command:

fastboot oem unlock

• Download recovery-clockwork-herring.img from here.
• Now install Clockwork recovery image on Nexus S by using the following command:

fastboot flash recovery recovery-clockwork-herring.img

• Reboot into recovery mode by using the following command at terminal or choose recovery from fastboot menu

adb reboot recovery

• Download Koush's unsecure boot image (rootboot.img) from here and put it in your /sdk/tools/ folder
• Now boot into fastboot and use the following command to install the rooted boot image:

fastboot flash boot rootboot.img

• Download CHainsDD's Superuser zip (su-2.3.6.1-ef-signed.zip) from here.
• Open the zip file, place the su binary and Superuser.apk in your sdk/tools/ folder.
• Now use the following set of commands at terminal to install Superuser app

adb remount
adb push su /system/bin/
adb push Superuser.apk /system/app/
adb shell
chmod 6755 /system/bin/su
exit
adb reboot

Unlocking Google Nexus S Bootloader

I need to get full permission control on my Google phone in order to start research on it. I need to perform 2 things before I start any development: unlocking & rooting Nexus S.

Unlocking the bootloader will allow me to install custom ROM. And by rooting it, I can gain full access to the filesystem.

My phone comes with Android 2.3.3 Gingerbread. Here's the steps to unlock it:

• Download and install Android 2.3 SDK along with fastboot from here.
• Turn off your Nexus S completely.
• Now hold down the Volume Up + Power key simultaneously.
• Now you should be in standard recovery mode.
• Open Command Prompt on Windows and type the following command to confirm if your device is connected via USB cable or not.

fastboot devices

• If fastboot is showing your device as connected, use the following command to unlock the bootloader of your Nexus S.

fastboot oem unlock

• Thats it! Now your Nexus S' bootloader is unlocked and you can easily install custom ROMs on your device.

My Google Nexus S

Recently I just get my first Android phone (Nexus S). Thus I can start my research on Android phone from now on.

Bye Bye, my iPhone 3G!