How To Unroot And Relock Motorola Xoom
Motorola Xoom has just now announced that the OTA update that will be rolled out tonight in phases. The update includes support for Adobe Flash 10.2 and Daylight Savings Update. In order to get these OTA update on your Xoom on Verizon Wireless, your device needs to be relocked and unrooted. Without wasting much of time, let us straightly head over to guide on how to relock and unroot Motorola Xoom.
UNROOT AND RELOCK MOTOROLA XOOM ON HONEYCOMB
Motorola has been generous with us. They have released the stock image (firmware) to undo unlocking and rooting of the Motorola Xoom. We will use that image and reverse the locking of Bootloader.
IMPORTANT: Flashing the stock image will bring your Motorola Xoom to factory condition. Which means you will lose all data. So make a backup before proceeding!
1. You need to have working USB connection between your Motorola Xoom and the computer. Head-over to our guide on how to setup ADB in Windows.
2. Download Motorola Xoom’s Stock Honeycomb ROM Build HRI39 (117MB) onto your computer and extract it’s contents.
UNROOTING INSTRUCTIONS (FLASHING STOCK IMAGE)
1. Copy the contents in the unzipped folder “MZ600_HRI39“ to “platform-tools” folder in your ADB Setup.
2. Connect your Motorola Xoom to Computer via USB cable.
3. On your Windows computer, click “Start”—>All Programs —> Accessories —> Command Prompt
4. In the Command Prompt window, launch ADB by keying in command:
adb reboot bootloader
5. Now type the following commands one at a time followed by enter key.
fastboot flash boot boot.img
fastboot flash system system.img
fastboot flash recovery recovery.img
fastboot flash userdata userdata.img
fastboot erase cache
Wait for the process to finish. After a reboot, you have successfully unrooted your Motorola Xoom. You have done this by actually restoring Xoom’s firmware to stock ROM.
Finally, you need to relock your Motorola Xoom’s Bootloader to finish off the process and get ready with OTA update.
1. Power off your Motorola Xoom.
2. Press and hold the Volume Down button while pressing the Power button until the device boots into fastboot mode.
3. Now connect your Motorola Xoom to computer via USB cable connection.
4. On your Windows computer, click “Start”—>All Programs —> Accessories —> Command Prompt
5. Type the following command
fastboot oem lock
That’s it. You have successfully relocked Motorola Xoom’s Bootloader.
Now your device is ready for the OTA update. Enjoy!