How To Fix Nintendo Switch Error While Loading fss0?

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Here in this post, we will discuss the Nintendo Switch error while loading fss0.

The error reads “Error while loading fss0: atmosphere/fusee-secondary.bin.”

This is the loading error on the Nintendo Switch that shows up when you are trying to load fss0 on the console.

While trying to launch fss0, many players have reported that they are receiving an error code that also informs them of the issues with the atmosphere and secondary bin.

According to our research, this error can come for a variety of reasons, and it is very hard to quote any of one or two specific issues causing this error.


How to solve the loading error for fss0 on the Nintendo Switch?


Fix 1: Your Payload is not updated

If you are facing the error code with the notification that reads something like this,

“Error while loading fss0: atmosphere/fusee-secondary.bin”

This means that the game payload is not updated because the secondary bin fusee configuration is not in active use anymore.

Here is what you need to do to remove this issue by updating the payload.

  • Launch GitHub 
  • Now check if there is the latest release version available.
  • You will see that there are atmosphere files as well as the payload available separately to download.
  • Download the latest version of both atmosphere files as well as the payload.

Refresh the device and check if the error disappears. If not, try the other solutions on the list that will be mentioned below.


Fix 2: You do not have your SD card formatted

The SD Card that you place into the Nintendo Switch needs to be configured in a certain format to be compatible with the console.

If you have just randomly entered any SD Card without formatting it, you will face issues like the one we are discussing.

Check to see if the SD Card is formatted in the FAT32 or NFTS format. If not, remove it from the device, format it accordingly, and then place it into the console.


Fix 3: The configuration files are missing

When you update your console, sometimes essential configuration files get deleted or replaced by mistake.

This will cause loading issues on the console as the essential software for loading is no longer available. 

Check the authenticity of the configuration files on the console and download newer updates if files are found to be missing.


Fix 4: Your EMUMMC Partition is not configured correctly

When the partition is created on the console, the atmosphere files are deleted from everywhere and only the EMUMMC partition has the data.

You will need to check the root folder on the SD Card for this data. If the files are only present in the EMUMMC partition, you will need to download the atmosphere files again.


Fix 5: Replace the Fusee Files

After replacing the atmosphere files, you might also need to check for the fusee files. As mentioned above, some formats of fusee files are no longer accepted by the console software and need to be replaced.

Since you are facing this issue with the fusee secondary files, you might want to replace them with the fusee primary file. You can also replace these files with the fusee files that came with the original package.


Fix 6: Contact the Nintendo Support team

If the solutions that are listed above seem too complicated to you, or if you tried them but still have the error then you should contact the Nintendo support team.


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Falguni Rana is a technology writer who has expertise in software and hardware troubleshooting. She publishes how-to and troubleshooting guides for different apps, websites, games, and consumer hardware products.