just want to make sure that the solution presented on the older post is still valid (format HDD):
Although, my HDD has not crashed, it displays the same error, and the loading of my console takes a couple of minutes to complete. My children already mentioned to me before, but I did't have time to check it on detail.
Before I checked on the forum threads I went through Xbox Assistance over the chat, and tried:
- network factory reset
- Looked for corrupted game/app files, but found none.
- Cleared cache.
- Downloaded my actual profile to the HDD, and took like years to complete it. At first one of my friends showed online, and I was expecting the problem to be solved, but again, it disconnected me.
- Creation of a new profile on a flash drive, but ultimately could not load the new profile, and displayed again the same error message 801511911, even though I was trying to download it to the USB, not the HDD.
All these took me almost 2 hrs, not because of the assistance, but because of my xbox loading/downloading times.
Lastly they suggested to turn off for 24 hrs my console to make sure no residual stuff remained on the HDD. I decided to conclude with the support, and they kindly provided me with the case number. Then, I found out a similar problem as mine on the forum, reported back earlier, but as I kept reading other similar threads, they ask to create new ones once those are closed. Finally, as the support agent didn't mention the HDD format solution, I want to make sure is safe to take.
Thanks for your time and patience.