In case you own an AT&T One X smartphone, you should know there’s a 270MB download waiting for you that’s going to update the phone’s firmware to Android 4.0.4 Ice Cream Sandwich.

But you shouldn’t hurry to update your device just yet, even if the new firmware will fix the menu button “issue” that you may have been complaining about. Why? Because the same update will also disable root, so if you’d rather have root privileges on the handset then you should stay away from Android 4.0.4 for the time being.

Image Credit: Droid-Life

Regular Android users that stay away from root procedures can update their handsets over-the-air (OTA) as soon as they get the notification and enjoy a better menu button and an overall smoother experience. But what’s the menu button “issue”? Some apps that aren’t updated to support the latest Android guidelines show a black bar that takes up space at the bottom of the screen (see image above), and Android 4.0.4 deals with that. Pocket Now reports:

This release cleans that up [the black menu bar], as well as provides new contextual behavior options for the phone’s recent apps button. Users are reporting an improved multitasking experience, and the impression of brisker operation with reduced lag.

In case you want to root your device, something we’d never advise you to do in the first place, there is a way to solve the “issue,” and we have already shown you how to do it. Not to mention that Android 4.1.1 Jelly Bean is also unofficially available for the handset, not that we’d advise you to go that way either.

There isn’t a changelog available for the update yet, so if you do notice any other changes worth mentioning, hit us up in the comments section.