He was using a hacked build of Dolphin, the emulator, stripped of its safety rails to allow direct manipulation of the virtual file system. He was trying to inject a patch to fix the broken file allocation table—the FST—that told the game where the music and level data lived.
Create a blank text file named portable.txt in the same directory as your Dolphin.exe . dolphin ios-fs failed to write new fst
Right-click the Dolphin installation folder and the "Dolphin Emulator" folder in Documents . He was using a hacked build of Dolphin,
How to Fix Dolphin issue: IOS_FS: Failed to write new FST Right-click the Dolphin installation folder and the "Dolphin
If you are receiving this error on Android, it usually directly correlates to Android's "Scoped Storage" security policies enforced in modern Android iterations.
If the NAND folder or the drive it is on has bad sectors or broken structures, Dolphin will fail to write the table. LaunchBox Community Forums Check Disk (Windows): Right-click your hard drive in file explorer -> Properties Error checking . Let Windows fix any drive write errors. Change NAND Path: