If you receive the error “USB Device not initialised. Switching to channel list mode,” the first step is to move the drive to the other port. Many users have solved the issue simply by switching ports. For scenarios where Port 0 no longer works, the d2x Alternative version may provide Port 1 support, but at the cost of reduced game compatibility.
Power delivery is another critical variable. The Wii’s USB ports provide limited amperage. Portable "bus-powered" drives that draw energy directly from the console often suffer from "brownouts" during intensive data reads, causing the game to crash. The community-standard advice found in these exclusive lists is to use either a drive with an external power supply or a "Y-cable" that draws power from both of the Wii’s USB ports. Paradoxically, while flash drives are the most convenient, they are universally discouraged. Flash memory lacks the consistent read-write controllers found in Hard Disk Drives (HDDs) or Solid State Drives (SSDs), leading to rapid corruption when used with the Wii’s file system. usb loader gx usb compatibility list exclusive
This is the single most common mistake.
Widely used in the scene. Most versions (1TB–4TB) work flawlessly. If you receive the error “USB Device not initialised