This is a clear cut/paste from the Google Code page
While trying to install Brawl, USB Loader GX softlocks. I am using a 32 Gb USB Flash Drive. This is all being done on the virtual Wii inside the Wii U
What steps will reproduce the problem?
1.Insert Brawl disc
2.Click Install
3.Wait
What is the expected output? What do you see instead?
I expect it to continue installing the game. Instead, it stops loading at 0.04%. The music is still playing, you can still move the cursor, but the cancel button does nothing and I can't Hard Shut Down (4sec press) the Wii U.
What revision of USB Loader GX are you using? (exact number, don't say
"latest")
Version 3.0 r1256-1257
On what operating system (IOS/Firmware/System)?
I don't know the answer to this question, Here is all the info I know:
I am using Custom IOSs, I don't know which ones, I followed this video's instructions: https://www.youtube.com/watch?v=l3nRANWnk5E
Again, this is on the Virtual Wii in the Wii U.
I'm sorry if I didn't provide enough detail, I hope this is enough
The issue is the flashdrive.
flashdrives are not compatible in write mode with the cIOS.
try using IOS58, but there's no promise it will work.
use a harddrive or try CleanRIP.
note: set the partition option in HDD settings to "remove update" or SSBB will be incomplete.