Xbox 360 fails system update [AU]

I turned my Xbox 360 on for the first time in about 3-4 months and it said a system update was required. Initially it could not retrieve the update and reported a xxxx-8007-2746 error. After trying to do manual update via USB it now keeps reporting: "A system
update is required to sign in to Xbox live, but the update is currently unavailable...." WTF. No Xbox Live functionality works.

I have tried all the following steps (in no particular order) based on the XBOX support pages with no success:

• Download system update and install via USB (extracted SystemUpdate_17502_USB.zip)
  
• Clearing system cache on storage device
• Rolling back last update via X-LB-RB-X-LB-RB-X keys
• Check sufficient storage – Yes
• Check network connectivity – Yes

Does anyone else have any other suggestions to try, before I have to request a repair from MS?

It it ridiculous my Xbox has been left in a partially unusable state and unable to recover. How could MS let this happen?

:)

 

Xbox 360 Slim Will Not Go To Dashboard Upon Startup

You might have to follow this
Link ReTro aG...

 

Problem with internal memory

Here is the link for update issues and steps to take to assist.

support.xbox.com/.../system-update-help

 

I have just spoken to online support with no further success. I was asked to raise a repair request. The request can only be raised if I pay AUD$105. I find this absolutely unacceptable to pay this amount of money for a problem created by MS.