Xbox 360 error code 801540A9 when playing 360 games on Xbox one

Hi junim,

Thanks for your post. I understand you are experiencing an issue with logging into your Xbox 360 profile and receiving the error code:
801540A9. Check out this page for steps on how to troubleshoot this issue: Error 801540A9.

Please keep us updated.

Hi Andrew,

I'm sorry to hear this is happening. We'll be glad to assist you further with this, I do have a question I would like to clarify. Since you're attempting to play this game on the Xbox One and it's asking you to sign in to your 360 profile, do you attempt
to download a complete different profile from the one you're signed in to the Xbox one? Reason I ask this is a common thing that happens when It prompts to have you download the profile on what appears to be the '360 dashboard' on the Xbox one you just need
to re-download the profile you have/ are signed in on the Xbox One.

Now, if you're trying to sign in and it is the same account for Xbox one and the 360 and it's prompting you this error code then this troubleshooting article may help further

"Error 801540A9 occurs when you start a game on Xbox one'

Hope to hear back soon to further assist.

Hello, i advise you to check this link Error 801540A9 occurs when you start a game on Xbox One | Xbox Support to resolve your issue.

Hi skyhighred

Please have a look at this support page(Xbox One):

https://beta.support.xbox.com/help/errors/error-code-801540a9

Here is a link to another thread with the same issue(Xbox 360):

https://answers.microsoft.com/en-us...-profile/f7562ea9-dc9d-4694-9c11-94152b7a1450

Thanks for trying to help out unfortunately when I went into the settings it was already added, also I think I forgot to mention, but the code 801540A9 showed up when I tried to download the account to my Xbox 360, as well as when I tried to play Xbox
360 games that I have, while playing on Xbox one, if you want, I can upload pictures if that will help out