Fix for Xbox 360 error code E45/0231
E45/0231 error of Xbox 360 is one of the least common ones, and if you are among one of them experiencing this issue it is most likely a problem related to an update.
The above statement means, something untoward happened during the update process that didn't go right.
To resolve this E45/0231 error, you need to try re-updating your Xbox 360. All you need to do is turn OFF Xbox 360 console and then update it again when you turn it back ON.