For those users of the AT&T variant of the Samsung Galaxy Note 2 (SGH-I317) waiting to experience the new Android 4.2.1 Jelly Bean on their devices, here’s some good news. The device can now be updated to the new firmware using CM10.1, the popular custom ROM from the CyanogenMod Team.

The Android 4.2.1 Jelly Bean includes features like multi-user support, gesture typing, new quick settings option, lock-screen widget, new camera app, photo sphere, improved Google Now, new daydream feature and miracast display, to name a few.

As Android Jinn pointed out, the CM10.1 custom ROM is currently in the nightly build stage. Therefore, chances of flaws are high. However, all these issues are expected to be resolved as development progresses.

Here is a tutorial explaining how to install CM10.1 Android 4.2.1 Jelly Bean on AT&T Samsung Galaxy Note 2 with the model number (SGH-I317). But before trying out the process, the users are recommended to take note of the following vital aspects:

- Backup your data.

- Ensure the device has at least 80 percent battery power.

- Ensure the USB Driver is installed for Samsung Galaxy Note 2 in your PC.

- Enable USB Debugging by going to Setting > Developer options > USB Debugging.

- Ensure your device has ClockworkMod Recovery installed.

- Backup your EFS Folder.

- Don’t skip Nandroid backup as it’s very helpful if this custom ROM doesn’t work the way you wanted.

- In case you get stuck on boot or experience boot loop, perform wipe cache partition and wipe dalvik cache a few more times before rebooting.

- Never restore system data using Titanium Backup. Restoring apps and data might cause severe problems.

The users should also remember that this tutorial is meant only for Samsung Galaxy Note 2 (SGH-I317). It should not be tried on any other Android device.

Moreover, IBTimes cannot be held responsible if anything goes wrong. They should proceed at their own risk.

Procedure

Step 1: Download CM10.1 4.2.1 Jelly Bean ROM For Samsung Galaxy Note 2 I317 (Filename: cm-10.1-20130118-EXPERIMENTAL-t0lte-buildtest.zip).

Step 2: Download Google Apps [Filename: gapps-jb-20121212-signed.zip].

Step 3: Connect Samsung Galaxy Note 2 to PC via USB.

Step 4: Copy all downloaded zip files to the SD card of your phone. But don’t extract any file.

Step 5: Disconnect USB and turn off your phone.

Step 6: Boot into ClockworkMod recovery in your Galaxy Note 2 by pressing and holding Volume Up, Home and Power button together till you see Samsung logo on screen.

Step 7: Release all three buttons for half a second and hold them again. You will see ClockworkMod recovery screen. Use Volume keys to browse between options in recovery while using Power key to select an option.

Step 8: Perform a Nandroid backup of your existing ROM. To do that, select Backup and Restore, then on the next screen, select Backup again. Go back to the main recovery menu after backup is complete.

Step 9: Perform the data wiping task. To do so, select wipe data/ factory reset, then select Yes on next screen to confirm your action. Wait till the data wipe is completed.

Step 10: Select install zip from sdcard and then select choose zip from sdcard. After that, locate the cm-10.1-20130118-EXPERIMENTAL-t0lte-buildtest.zip file and select it by pressing the Power button (tap on it if using touch version).

Step 11: Confirm the installation by selecting Yes – Install _____.zip on the next screen. The ROM installation will begin.

Step 12: After the installation process ends, repeat step 10. But choose gapps-jb-20121212-signed.zip instead of ROM zip to install the Google apps package.

Step 13: After the installation is completed, go back to the main recovery menu and select Reboot System Now to reboot the device and boot up into the customized Android 4.2.1 Jelly Bean ROM CM10.1. The first boot will take time.

[Source: Android Jinn]

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