Hi there my first post on my Nintendo Wii. So you can upgrade your wii without no problems. Inside the Wii hardware you found SD card 512mb you can upgrade by remove the sd and put a new sd of 2gb. But beceareful, if you broken your wii you lost your warranty. Did you know Wii also support SDHD cards and SD cards, Micro SD with SD cards adapter. I have SDHD of 4gb on my wii?