Here is another bannerbrick fix, using the Netflix disc.
Should work on all wii's
<4.1, and 4.2u/4.3u+ wiis
Wii Netflix disc
Disc exploit: Indiana PWNS, Yo-Gi-Oh, ect
Load savemiifrii, insert the game for your disc exploit, play the game. Turn off the wii.
Burn the Wii Netflix disc, good and proper.
If your modchip is not set to autoboot discs, use Wii Bootme
to set the iso to autoboot.
The wii must be offline. If you have internet enabled, power off your wifi router.
Use savemiifrii to boot the wii into the recovery menu.
Insert the Wii NetFlix disc
Netflix should load and give a connection error. It will then prompt you to enter the wii settings.
Enter the Wii Settings, it will take you to the connection settings.
Back out of the connection settings and enter Data Managment.
Install the disc exploit you plan to use.
Put Multi-Mod Manager boot.elf
to and cIOS80-v6174.zip
Load savemiifrii, insert your disc expliot game.
Multi Mod Manager will load.
Select reload an ios, load ios250
Select wadmanager, install cios70 and cios80
I don't think you will be able to get the netflix to load the data managment. But if you do the wii is fixable. You may need to do some other stuff to get the cios installed if you don't have cios250 on the wii. But if it does load datamanagement, post back and I'll give better instructions. Like following my softmod guide below, that would work.