[BlackDobe]

so please elaborate, 3g data wont work on xoom's that have not been upgraded to lte yet?

If you are the owner of a Motorola Xoom that currently has only 3G data working by flashing this ROM your 3G will cease to work but your WiFi connection will (should) remain operational.
If you are the owner of a Motorola Xoom that currently has 3G AND LTE data working by flashing this ROM your 3G and LTE will remain operational as well as your WiFi connection.
If you are the owner of a device other than a Motorola Xoom flashing this will cause bad things to happen to you, including but not limited to; being fired from your job, your significant other leaving you, aliens over-taking Earth, gnomes rising up in revolt, women's orgasms ceasing to exist, and Twilight to become a heterosexual movie.

Hopefully this cleared it up for some people.

 

[BlackDobe]

I don't think this works with a 4G/LTE upgraded Xoom. My WiFi doesn't connect, my home button doesn't function, lots of issues. Going to send back to Motorola so they can fix. I guess I will have to deal without Root possibilities for now.

You could always do what I did tonight. Go here and get your respective images (mine was Build HLK75D) and follow the instructions at the top on restoring to stock, leaving out the part to lock the device. Then go here and do steps 3 & 4 to re-root the device. After I got my Xoom back it felt a bit laggy but I ignored it for a while. I couldn't take it anymore so I flashed back to stock & re-rooted (and installed the Rana kernel). I feel a lot better now & the Xoom seems to have a little more pep now. It honestly takes longer to download all the files you need than to actually do this. If after you're done you don't have the warm & fuzzies and you're still having issues - return it to Moto to get fixed/replaced.

Oh.. and don't forget to backup your apps/data if you have any non-market installed apps. You'll want those back when you're done.