Installing Ice Cream Sandwich (Android 4.0.3) on your AU Xoom (MZ604)

As with anything the usual precautions apply. We are not responsible if you damage your device. This will wipe all of your data so backup your data if you need it. This process will first install US Xoom WIFI Honeycomb firmware, which will then allow you to get an OTA update to the official Ice Cream Sandwich Android 4.0.3 update (IML77).

Now that ICS adds the ability to take screenshots (hold volume down + power for 3 seconds), there is less or a reason to have root privilege, especially since it removes the necessary DRM keys for watching rental videos from the Market.

1. Preparation
   
   • First, go to the Motorola Developer site and download the image for the US Xoom WIFI MZ604.
   • Extract the ZIP file and place them in the folder containing the Android developer tools.
   • Connect your Xoom to your PC and enable "USB debuging" under settings -> applications -> development -> "USB Debugging"
2. Unlock your bootloader if you have not done so already:
   
   adb reboot bootloader
fastboot oem unlock
adb reboot bootloader
   


3. Flash the US WIFI Xoom firmware:
   
   fastboot flash boot boot.img
fastboot flash system system.img
fastboot flash recovery recovery.img
fastboot flash userdata userdata.img
fastboot erase cache
fastboot erase userdata
fastboot reboot


4. Lastly configure your Xoom and then install the series of over the air updates. The very last one should be Ice Cream Sandwich!