Select a Memory card pressing “A” for slot A or “B” for slot B. Restore the files by pressing “+” for Wii Controller or “X” for Gamecube controller.
Select an internal SD by pressing “A” or a FAT32 USB device by pressing “B”. Launch the “GCMM – Memor圜ard Manager” from the homebrew channel. Insert a Gamecube Memory Card in Slot A or B. Remove the SD Card and insert it back into the WII. Note : I haven’t test with the OSSC and XRGB version but should work as well.
First download the two files from the link provided and extract them in separated folders :