If you aren't sure about the status of your mod, your best to remod it using a gude that works.
See the Softmod Any Wii guide linked in my signature. Don't try to undo, delete, format, anything. Just go through the guide from the top down and include all "optional if not 4.3 menu" pieces. It will overwrite all IOS's to a good set, overwrite all cIOS's to a good set, give you the latest shopping channel so you can access it again post-mod and install Menu 4.1.