As it turns out, there are several different causes that might end up producing this particular error code. Here’s a shortlist of potential culprits:

Method 1: Checking the Status of Xbox Live Services

Before you try any of the potential fixes below, you should start this troubleshooting guide by ensuring that Microsoft is not currently dealing with a widespread problem with the Microsoft Live Services – If a server issue is actually causing the 80151909 error, none of the potential fixes below will work as the problem is entirely beyond your control. To check whether the current problem is related to a problem with the Xbox Live infrastructure, you should check out the official status page of the Xbox Live services. If the status page is signaling a problem with the Xbox Live service, there is nothing else you can do other than wait for Microsoft developers to fix the problem on their side. However, if the investigation has revealed no issues with the Xbox Live infrastructure, move down to the next method below to enforce the first fix that might help you fix a local issue.

Method 2: Power-cycle your Console

As it turns out, you can also expect to see this problem due to some kind of corrupted temp file belonging to a cluster of profile data associated with your account. This type of problem is reported to occur on both Xbox One and Xbox 360. If this scenario is applicable, you should be able to fix this issue by power cycling your console and ensuring that the power capacitors are completely drained before initiating the next startup – This operation will ensure that every non-relevant temp data is cleared, which will end up fixing the majority of firmware and OS glitches. Here’s a quick guide on how to power-cycle your Xbox console: In case the same issue is still occurring, move down to the next potential fix below.

Method 3: Moving the Xbox Profile (Xbox 360)

As it turns out, some Xbox 360 users that were encountering this problem have managed to get around the 80151909 error code by moving their Xbox profile to a different storage device. This fix is typically reported to be effective in instances where the user sees the error when trying to download new information about the profile locally. Note: Keep in mind that this is more of a workaround than a fix. A portion of users that have used this fix successfully have reported that the issue has returned sometime later. Typically, the problem returns the next time you power on the console – but you can enforce the same fix once again. Here’s a quick step-by-step guide on moving your current Xbox profile to a different storage drive in order to get rid of the error 80151909:  If the same problem is still occurring, move down to the next method below.

Method 4: Clearing System’s Cache (Xbox 360 Only) 

According to some affected users, this problem can also occur due to some type of system file corruption that winded up inside the temporary file of your Xbox console’s firmware. If this scenario is applicable, you should be able to fix this problem by using the Settings menu to clear the System Cache via Drive options. This potential fix was confirmed to work by a lot of Xbox 360 users that were previously encountering the error 80151909 code. If you don’t know how to perform this operation by yourself, follow the instructions below: If the same error code is still occurring, move down to the next potential fix below.

Method 5: Performing a Factory Reset (Xbox 360 Only)

If you’ve exhausted all the potential fixes above and you’re still seeing the 80151909 error when trying to sign in to Xbox Live or when trying to download your Xbox Live profile locally, a factory reset usually gets the job done if you’re dealing with some kind of persistent firmware glitch. Note: Before you engage in this operation, make sure that your saved game data is safely backed away on the cloud or on a flash drive. If you’re looking for guidance on performing a factory reset on your Xbox 360 console, follow the instructions below: If the same problem is still occurring, move down to the next potential fix below.

Method 6: Contacting Xbox Support

In case none of the potential fixes outlined above have worked for you, you should start considering the fact that your account was restricted or you’ve received a temporary ban – This is even more likely if you’ve recently violated the ToS of Xbox Live. If this scenario is applicable and you suspect you might be dealing with an account restriction, you should get in touch with an Xbox Live agent and ask him/her for clarifications. To get started with this, you need to open the official Xbox support link and click on Ask a question from the list of available options. Note: If you want to expedite the process, you should opt to get in touch with a Live Microsoft agent. They will happily look into the matter for you. But keep in mind that Microsoft support is notoriously slow and they work on a fixed schedule. If your timezone is far away from PT, you will be better off using the Webchat Option (Available 24/7). To get started, click on Contact Us, then choose Account & Profile from the list of available options. Then click on I can’t sign in to Xbox Live from the What’s the Issue? menu and click Next to continue. At the final window, click on Get help with sign-in issues and then choose your preferred way of opening an investigation on your account.

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