Stop making threads about the updates and just read, derp.
The Xbox 360 console software is updated periodically with new features. If you're having one of the following problems, updating your console software might fix the problem:
- Dashboard themes don't appear.
- Avatars are missing.
- The Kinect sensor doesn't work (flashing green or red sensor light).
It's also going to be adding the new dash update but it won't be applied to the console until it is properly released in a few weeks/month.