The Motorola Atrix 4G is considered to be America’s first dual-core phone until the Galaxy S2 came along. Since the release of Android 4.1 Jelly Bean way back at Google’s  I/O 2012, more developers have taken interest in bringing the latest update to a chosen number of phones.

The Atrix 4G is no exception as XDA Developers member jokersax11, who was responsible for bringing ICS to the device, has also stepped up to provide Android 4.1.1 Jelly Bean in the form of an unofficial build of CyanogenMod 10.

The ROM is still in alpha development, which means many features are still broken.  So, the ROM may not yet be suitable for daily use.

Jelly Bean with its buttery-smooth interface, enhanced voice recognition, and fast performance is one of the main reasons many users are going nuts over Google’s updates. If you are one of the many users who own an Atrix 4G and want to try out what Jelly Bean has to offer, then this is your chance to do it.

Continue reading the rest of this guide to learn how to upgrade the Atrix 4G to Android 4.1.1 Jelly Bean via CyanogenMod 10.

Warning

• The instructions in this guide are intended for use with the Motorola Atrix 4G, model number MB860. Applying these instructions on another device or model may produce undesired outcomes.
• The information in this guide is provided for instructional and educational purposes only. There is no guarantee that these instructions will work under your specific and unique circumstances.
• Use these instructions at your own risk. We shall not hold any responsibility or liability for whatever happens to you or your device arising from your use of the info in this guide.
• Read and understand the whole guide first before actually performing the instructions.

Requirements

• Rooted Motorola Atrix 4G with ClockworkMod Recovery installed.
  • Need help with rooting and installing ClockworkMod Recovery? You can refer to these guides:
    • How to root the Motorola Atrix 4G
    • How to install ClockworkMod Touch Recovery on Motorola Atrix 4G
• Download the following files and save them to your computer.
  • CM10 ROM for the Atrix 4G (cm-10-20120805-UNOFFICIAL-olympus.zip, 140 MB)
  • Google Apps Package (joker-jellygapps-v3.zip, 85.7 MB)
• Fully charge battery or at least 70% battery left.
• Backup all personal data on your phone to make sure you have a copy of your personal data (e.g., contacts, SMS, MMS, Internet settings, Wi-Fi passwords, and the like) in case the procedure in this guide erases such data.
  • For backup tips, check our guides on how to sync your data to the cloud and how to create local backups of your mobile data.

Instructions

1. Copy the downloaded ZIP files and place them on your phone’s SD card.
2. Switch off your phone.
3. Boot your phone into ClockworkMod Recovery. You can do this by pressing and holding down the Volume Down key and pressing the Power button.  Keep holding down the Volume Down button until you see the word “Fastboot” at the top left portion of the screen. Hit the Volume Down repeatedly until you see the option on top changing to “Android Recovery.” Press the Volume Up button to select it and boot into Recovery Mode.
   • NOTE: Once in recovery, use the Volume keys to navigate and the Power button to select an option.
4. Backup your existing ROM.  To create a NANDroid backup, select Backup and restore > Backup from the recovery menu.
5. Go to the Mounts and storage menu.  Execute the following commands:
   1. Format /cache
   2. Format /data
   3. Format /system
6. Return to the main recovery menu.
7. Perform a full wipe (you can skip this step if you came from a previous version of this ROM):
   • Select Wipe data/factory reset, then select Yes on the next screen to confirm data wipe.
   • Select Wipe cache partition and confirm the action on the next screen.
   • Go back to the main menu and select Advanced. From there, select Wipe Dalvik cache and confirm the action on the next screen.
8. Select Install ZIP from SD Card.
9. Select Choose ZIP from SD Card, then browse for ROM zip file. Confirm the installation by selecting Yes on the next screen that follows. It may take 5-10 minutes for your phone to finish with the installation process.
10. After the ROM is finished installing, repeat steps 8 and 9, but this time around choose the GApps package to install it on your mobile phone.
11. Head back to the main recovery menu by selecting Go back.
12. Reboot your phone by selecting Reboot system now. It may take a couple of minutes as this is the first time your phone will boot into Jelly Bean.

Congratulations! You have successfully installed unofficial CyanogenMod 10 ROM on your Motorola Atrix 4G MB860.