However, few things are as frustrating as watching your installation progress bar crawl to 99%, only to be slapped with the cryptic error message: "Result code: 0xd8e0806a" "Description: Invalid argument / Description: Already updated" You are not alone. The error code 0xd8e0806a has become a notorious roadblock in the 3DS modding scene, especially for users who keep their firmware and homebrew applications up-to-date.
Last Updated: 2026 Difficulty Rating: Moderate Affected Software: FBI, GodMode9, Custom Firmware (Luma3DS/B9S) failed to install cia file 0xd8e0806a updated
Safe homebrewing, and don't forget to make a NAND backup before your next big install! However, few things are as frustrating as watching
If you are a Nintendo 3DS homebrew enthusiast, you have likely spent countless hours curating the perfect library of .cia files. These files allow you to install games, applications, and DLC directly to your console’s SD card or internal memory. If you are a Nintendo 3DS homebrew enthusiast,