Whenever I try to acces the guide, the screen just dims for 1 second, and then nothing happens.

Just gave it a whirl and it looks like it made things worse.

I booted up the X1 and when it loaded up my account wasn't signed in. I then went to sign in and nothing happens. The screen dims briefly like it was trying to transition everything to my settings, but nothing happens. So now I can't even sign in. haha

The controller is connected, and will turn the console on without being plugged in. But the function is not working properly. When I try to use controller for anything, it lags a bit and typically will have that error code I mentioned pop up. When I press
the button on the controller to open up the guide, the screen just dims down and nothing will show.

Whenever I click on the “+Add New” below my gamerpic is when it loads for a few seconds and then nothing happens and it sends me back to the home screen.

That actually reminds me - the DLC I do have is on my internal and I can't move it to the external. Every time I try, the screen dims like it's about to ask me if I want to transfer it to the other drive and then after a few moments, the screen goes back
to normal and nothing happens.

Hello KyleFoote,

Thank you for posting on the Xbox forums. We understand that you are interested in learning if you can turn off the Xbox One's ability to dim the screen. The option to turn off the dim screen feature is not available. However, you can change the amount
of time before the screen goes dim. We will provide instructions on how to access this settings. We hope this information helps KyleFoote!

How to change the dim screen timer:

1. Press the Xbox button on your controller to pull up the guide
2. Select Setting
3. Select Preferences
4. Select Idle options
5. Choose your preferred time