How did you (e.g., AltStore, SideStore, TrollStore, or Jailbreak)?
Never force-close Dolphin while a game is actively saving or loading.
This error typically appears when launching a game or managing virtual Wii system data. Below, we break down what this error means, why it happens, and how to fix it.
Use a file manager like Filza . Navigate to /var/mobile/Containers/Data/Application/DolphiniOS and ensure the owner permissions are set to mobile with read/write/execute access enabled. 5. Check JIT Enablement Status
📦 Target Path Exclusions Checklist: └── 📂 C:\Users\[Username]\Documents\Dolphin Emulator └── 📂 C:\Users\[Username]\AppData\Roaming\Dolphin Emulator └── 📄 Dolphin.exe (Executable file direct inclusion) 3. Correct Registry Path Pointer Mismatches
The folder holding the NAND data is set to "Read-Only," or the operating system is restricting Dolphin's access.
Scroll to and select Manage Controlled folder access .
In plain English: Dolphin wants to save changes to your game’s internal file index, but it cannot complete the writing process.
Press Windows Key + R , type regedit , and hit Enter to open the .
Move the entire folder to a different location (e.g., directly onto your C:\ drive or another internal disk).
Windows might be restricting Dolphin's ability to modify files in its own folder. Right-click Dolphin.exe . Select . Try to run the game or perform the operation again. 2. Check Disk Space and Drive Permissions
Ensure your target drive has at least of the uncompressed game available.
This error typically appears in (used to play Nintendo GameCube and Wii games on other platforms, including attempts on iOS or related to iOS file systems). It means the emulator tried to update its FST (File System Table) — a cache file that stores directory structures of a game disc — but failed to write the new version.
How did you (e.g., AltStore, SideStore, TrollStore, or Jailbreak)?
Never force-close Dolphin while a game is actively saving or loading.
This error typically appears when launching a game or managing virtual Wii system data. Below, we break down what this error means, why it happens, and how to fix it.
Use a file manager like Filza . Navigate to /var/mobile/Containers/Data/Application/DolphiniOS and ensure the owner permissions are set to mobile with read/write/execute access enabled. 5. Check JIT Enablement Status dolphin ios-fs failed to write new fst
📦 Target Path Exclusions Checklist: └── 📂 C:\Users\[Username]\Documents\Dolphin Emulator └── 📂 C:\Users\[Username]\AppData\Roaming\Dolphin Emulator └── 📄 Dolphin.exe (Executable file direct inclusion) 3. Correct Registry Path Pointer Mismatches
The folder holding the NAND data is set to "Read-Only," or the operating system is restricting Dolphin's access.
Scroll to and select Manage Controlled folder access . How did you (e
In plain English: Dolphin wants to save changes to your game’s internal file index, but it cannot complete the writing process.
Press Windows Key + R , type regedit , and hit Enter to open the .
Move the entire folder to a different location (e.g., directly onto your C:\ drive or another internal disk). Below, we break down what this error means,
Windows might be restricting Dolphin's ability to modify files in its own folder. Right-click Dolphin.exe . Select . Try to run the game or perform the operation again. 2. Check Disk Space and Drive Permissions
Ensure your target drive has at least of the uncompressed game available.
This error typically appears in (used to play Nintendo GameCube and Wii games on other platforms, including attempts on iOS or related to iOS file systems). It means the emulator tried to update its FST (File System Table) — a cache file that stores directory structures of a game disc — but failed to write the new version.