If you’re using a Motorola Xoom tablet, and haven't yet upgraded to 4G LTE, your time is running out. March 31st is the day that Motorola will shut down the website supporting the Xoom updates. But Motorola will still add LTE to the Xoom as long as it receives your tablet by April 11th. Before you send your precious Xoom to Motorola, you should remember to do a few things. Back up your Google account, transfer any multimedia content, and definitely don’t forget to delete all your personal data (phone numbers, email addresses). Once received by Motorola, they will email you a link to track your Motorola Xoom.