One issue might be try. IOS downgrader, i believe that should fix your issue. After you run that wad, reinstall USB LOADER WAD, and go back to IOS downgrader.
The IOS downgrader helps sometimes to get rid of -2011 errors, especially during updates and upgrades.
Also you can try .dol version of USB Loader GX and run it through HBC.
Hope that helps.
-Wynd