How to: Un-root and re-lock your Motorola XOOM

The update going out right now can only be installed on your Motorola XOOM if it is running stock and has it’s bootloader locked. You will also have to do the same thing before you send in your XOOM to get the 4G software and hardware update. So, we’ve got the how to on getting your XOOM back to stock so that you can do both of these things with ease. You’re going to need a .sbf file, which we talked about earlier, but that file has since been taken down. Fortunately, Motorola has officially released the file, so we don’t need to worry about that link being taken down or having C&D issues by linking to it. Hit the break for full instructions:

This will completely wipe your XOOM. You might as well get used to this sort of thing if you are looking into getting custom ROM’s on the XOOM later anyway though.

Things you will need

Android SDK installed on your computer: Download Link
Offical HRI39 .sbf file: Download Link

Instructions

Unzip the files in the MZ600_HRI39.zip you downloaded and place in the /platforms-tools section of the Android SDK folder.
Connect your XOOM to your computer
Open up the command prompt from the /platform-tools area
- Go into the folder, hold the SHIFT key, then right click(make sure nothing is selected in the folder). Choose “open command window here”
Type: adb reboot bootloader
wait for your XOOM to reboot into the bootloader
Type the commands below, waiting for each to finish before typing the next one:
- fastboot flash boot boot.img
- fastboot flash system system.img
- fastboot flash recovery recovery.img
- fastboot flash userdata userdata.img
- fastboot erase cache