You cannot dump the NAND without homebrew. Use str2hax (easiest):
: Set this to a multiple of the native resolution (e.g., 3x for 1080p) in the Graphics settings to eliminate jagged edges. wii nand download dolphin high quality
You cannot just drag nand.bin into Dolphin. You must import it using Dolphin’s NAND management tools. You cannot dump the NAND without homebrew
This feature would automate the creation of a "High Quality" NAND by combining official system files with optional, high-fidelity enhancements and necessary unique credentials. How To Install The Wii Menu (NAND) To Dolphin (2026) wii nand download dolphin high quality