Error 8C150009 occurs when opening Account Management on Xbox 360

This link says nothing about any solution, even if it trying to look like that.

Solution 1: Sign in to your account online

If you’re unable to access Account Management on your console, you can access all subscription and account services online. To review your subscription status and manage your account, go toaccount.microsoft.com/services and sign in.

- This is NO solution, just workaround for check subscription

Solution 2: Check the Xbox Live service status

If you receive this error but are not attempting to open the Account Management tile, check the Xbox Live service status.

- Live status for all services is "Up and Running"

I´m affraid this did not solved my problem at all :-)

Hello there,

Thank you for keeping us updated. Do you have a different profile on your 360 that also has a gold subscription? If so, can that profile access the account settings? 

Another thing you can check is a different network, if possible. A hotspot could work, but I'd recommend a friend or family members home network to test out your 360.

Hi, I have only one gold subscription profile on console. Other family account without subscription.

This is what shows wifi via provider UPC

I tried hotspot via iPhone with Tmobile and result is same: Service Alert

With both network options this is result, still same:

Hello again,

I actually worded one thing wrong up there. You would not need gold on the account to check account settings. The other account would only need to have a gamertag. See if your other accounts can access the account settings.

Aside from that, you may need to contact a customer support agent so that they can look into your account and hopefully troubleshoot it. You can also look into your storage for corrupt data. Go into every category looking for corrupt files. they will have an exclamation next to their names.

Hope this helps!

Hi again,

so I just tried my wife´s LIVE account without Gold on my console and Account management works OK without any errors.

So it seems there´s something wrong with my Gold account on my general account.

Right after that I again switched to my account and I´m getting this:

I went through the files for potential corrupt data and didn´t find any.

I will try to contact agent (again), I did it already during last weekend and all was aimed for outage, which unfortunatelly was not reason.

No one from Microsoft did help me, the issue remains. I already gave up long time ago.

Even the support from Microsoft told me that they raising some ticket, never get solution back.

It is a shame, I am enraged, call several times and with those who speak, microsoft support do not know how to solve it.
in 2017 and 2018 the same thing happened and they say that after several months it was solved.
let's be in touch
hug