newer wii's cannot run a 3.2 system menu UNLESS you first install IOS60v6174 to slot30... chances are good that you bricked yourself.
Do you have a nand backup? If so, you can send your Wii to DeadlyFoez and he can repair it using his infectus nand programmer to restorer your nand backup.
edit: this is a perfect example of how ModMii's extra brick protection comes in handy. If this wii had ModMii's extra brick protection installed (which includes IOS60v6174 installed to slot30), then making the mistake of installing a 3.2U system menu would not have resulted in a brick.