Bannerbomb by
Comex is an exploit capable of launching homebrew from any version of the System Menu. It was created to replace the Twilight Hack, which does not work on System Menu 4.0.
The exploit works by using a malformed banner to crash the Wii and run code to load the boot.dol placed in the root of the SD card. It can be used to install the Homebrew Channel, DVDx and the BootMii public beta via the hackmii installer.
Usage
What you need
SD (or SDHC if you're running System Menu 4.0) card formatted as FAT16 or FAT32.
SD card reader for PC or a PC with one built-in
Bannerbomb channel data
Some homebrew to load
Guide
If your SD card has a private directory, rename it temporarily, e.g. to "privateold". Having other saved channels on the same card will screw it up. (Also, if you don't have any channels on the SD card already, it's possible to skip this step so you can keep saves on your SD card)
Copy the Bannerbomb "private" folder to the root of your SD card.
Take your Wii executable, name it "boot.dol" or "boot.elf" if it isn't already, and save it in the root directory of your SD card.
Put your SD card in your Wii and turn it on.
Go into Wii Options --> Data Management --> Channels --> SD Card.
A message should appear asking to "load boot.dol/.elf". If it freezes or does not appear, download the next .zip file from the Bannerbomb website and start over.
The homebrew on your SD card will load. Enjoy!
(Optional) Fill out Comex's survey on the Bannerbomb website.
Open the settings menu
Go into Data Management and then Channels
Press SD Card
A pop-up box will appear. Click yes.
Troubleshooting
Please note that Bannerbomb does not work for everyone at this time.
If your Wii freezes while trying to use Bannerbomb, follow these diagnostics:
Make sure you're not trying to use the SD Menu on System Menu 4.0 (the little blue SD card button in the lower left).
Check that you pressed the Channels button in Data Management.
Make sure that Bannerbomb is the only channel on the SD card.
Try a different version of Bannerbomb. Most people should be able to use aad1f, but some might need another version.
Bugs
If it gives you the dialog but freezes instead of loading the dol, email Comex ( comexk @ gmail dot com ). Tell him where it froze and whether or not the slot light is on. You might also try removing the disc.
If you press "no" when it asks you whether you want to load a dol then it might freeze.
It is possible to press the back button "under" the dialog.
Changelog
v104
Can now boot 'boot.dol' or 'boot.elf' to support for the 'HackMii Installer'.
v103
Added some stuff that may or may not help with stability.
v102
First public release