How To Gain Back The Root You Lost While Updating Android 3.1 On Your Motorola XOOM 3G Or Wi-Fi

The Android 3.1 update that’s been rolling out to Motorola XOOM contains quite a few improvements like better stability, resizable widgets, and an extended app switcher. However, the update does not contain root. It gets lost every time the update occurs. So, here are we with the procedure to root back your Android device post the update.

Note: This procedure is tested and working on the Mortorola XOOM Wi-Fi. It will not work on the 3G Xoom.

Warning: The procedure may damage or permanently destroy your device. Perform this procedure at your own risk.

The procedure must be performed after unlocking your Xoom to acquire root access.

Download:

WiFi_RootTool_3.1.zip

Summary:

• Pushes Superuser, su, and other root files. Sets correct permissions to enable functioning root
• Flashes bigrushdog modified stock 3.1 boot.img (kernel) to enable external SD card storage (in /sdcard/external)
• Prevents system from over-writing custom recovery
• Enables USB OTG

Assumptions:

• Unlocked your Xoom
• Downloaded the WiFi_RootTool_3.1.zip
• Downloaded a recent ClockworkMod recovery image to your PC
• Installed a physical SDCard in your Xoom
• Configured the Android SDK on your PC, with adb functioning properly
• Downloaded fastboot and have it functioning properly

Procedure:

Step 1: Prepare your SD Card

Using an SD Card reader, move XOOM_RootTool_3.1.zip file from your PC to the root of your SD Card. Now, install the SD Card into your Xoom. Alternately, mount the SD Card via Xoom in recovery after you boot into recovery in step 3 by selecting 'mounts and storage > mount USB storage'.

Step 2: Flash ClockworkMod recovery.img

• Connect USB cable from your PC to Xoom. Ensure USB Debugging is activated in the Application settings menu.
• Open command prompt> Navigate to the adb folder> Change 'XXXXXX-XXXX' in code to match filename

Code:

adb reboot bootloader

fastboot flash recovery recovery-solarnz-XXXXXX-XXXX.img

fastboot reboot

Step 3: "Catch the boot" to boot into recovery

As soon as you send the 'fastboot reboot' command in the previous step, your device will reboot. You have to boot into recovery instantly else your Xoom will reflash the stock recovery over the custom recovery.

• When you see the Motorola logo appear, wait for 3 seconds.
• Tap the Volume Down button > "Android Recovery" appears> Now tap the Volume Up button to boot into recovery.
• When attempting to "catch the boot" it says 'Starting Fastboot protocol support' then hit Volume Down too soon. Hold Vol UP + Power to reboot and try again.

Step 4: Flash WiFi_RootTool_3.1.zip

In ClockworkMod Recovery, select "install zip from sdcard"> Select "choose zip from sdcard"> Select "WiFi_RootTool_3.1.zip" > Select "Yes - Install WiFi_RootTool_3.1.zip"> Select "Reboot System Now"

That’s it! Enjoy your rooted devices.