If you are reading this, you have likely encountered one of the most frustrating roadblocks in Nintendo 3DS modding. You’ve downloaded a new game, DLC, or update file (a .cia file), opened the FBI installer, hit "Install," and waited... only to be met with the dreaded red error screen:
Result code: 0xd8e0806a Level: Permanent (27) Summary: Invalid argument (7) Module: AM (32) Desc: (6a) failed to install cia file 0xd8e0806a updated
A: No. The update will not apply. You will remain on the base version, and if the update is required for online play, you will be locked out. If you are reading this, you have likely
Do not panic. Your 3DS is not bricked. Your SD card is likely not dead. Here is the definitive guide to understanding and fixing the 0xd8e0806a error. Before we fix it, let's decode the error. On the Nintendo 3DS, the AM Module (Application Manager) handles all installation, deletion, and launching of titles. Error 0xd8e0806a translates to a specific digital handshake failure: The update will not apply
Specifically, the phrase "failed to install cia file 0xd8e0806a updated" usually appears when you are trying to install an for a game. The "updated" tag in your search suggests that the problem started after you attempted to move from a base game to a patched version.
A: Rarely. Citra handles encryption differently. This error is primarily for physical 3DS hardware. Conclusion The "failed to install cia file 0xd8e0806a updated" error is a rite of passage for 3DS homebrew enthusiasts. While the red text looks alarming, the solution is almost always a simple mismatch between an existing base game and a new update file.