Error Code E305 00000001 80073CFE

I also am experiencing the error code E305 00000001 80073CFE

I followed the unplug and plug back in routine to no success.. i can't go on Offline System Update Diagnostic Tool

because it takes me immediately to the error screen.. and after waiting for over hour + the calling centers closed on me..

PLEASE HELP!!!

Hey there Say! Let's see what we can do to get things sorted.

To start off, here's a few questions for you:

1. Were you powering your console on from power saving mode or from instant-on mode?
   
2. Have you seen this error code before or since?
3. Have you seen this error code at any other time other than start-up?

Get back to us and we'll be standing by to hear back from you! ^_^

I have the same problem I'm on power saving mode

No

And no

There have been a few posts that mention that error code on here, but nobody has posted any solutions to it as far as I can see. If I was you, I'd call Xbox Support and see what they say. It may be that you will need to have the console replaced, but an
advanced replacement shouldn't take too long.

I tried both OSUDT files in the above link. OSUDT1 failed immediately with a small progress bar and gives another code. E101 something something something. If I used OSUDT2 files the bar updates then it goes to a screen to apply update then fails with code
E305 00000001 80073CFE again. What ended up working for me was to use the System Restore file from the offline sysem update diag tool link. Hope this helps someone out there.