i had a 2 gd sd chip and bought a 4 gb sdhc chip my wii wont read the 4gb and it has the latest updated system and then i go to put the 2 gb chip in and now it wont read the either anyone have any ideas?
since the Wii menu 4.0 update included compatibility with SDHC then the fact that one is SD and the other is SDHC should have no bearing on the issue.
It sounds more like there's something going on with a read issue. i suggest starting by clearing/formatting the card so that it's a clean slate and see if that helps.