Wow, what a load of fail.
Most of that crap is unsupported here.
Anyway, about your issue.
Either: a) download and rename all the necessary WADs with NUSD and place them in ROOT (not in WAD folder)
or
b) in the app choose "Install from NUS" instead of "Install from SD" (options may not be exactly that, but they're similar) You change this option with left/right on d-pad after selecting "Downgrade IOS15".
If you cannot work it out, download dop-IOS MOD v9, run it, and at the very start, instead of choosing an IOS, select "Install an IOS that accepts fakesignatures for me". This'll do everything TBR does, only automatically, so you dont have to worry about anything after pressing A on "Install an IOS that accepts fakesignatures for me".
Edited 1 time(s). Last edit at 12/05/2009 12:35AM by Arikado.