There seems to be a lot of confusion about how to get past PWT on DSTwo, so I thought I'd make it clear.
The DSTwo EOS automaticly patches the BW2 roms, but the patch isn't exactly perfect, which results in freezes on PWT and possibly other glitches. It even attempts to patch the pre-patched roms, which breaks the working patch.
The solution to this problem is to run a pre-patched rom in clean mode. This gives you a rom with a working patch (which won't glitch out at PWT) and tops the DSTwo EOS from breaking the patch. Of course, you will not have access to cheats or the in-game menu, but you will be able to play through the game normally.
This is what I've gleaned from reading a number of posts full of confusion and sparodic success.
FWIW, this works for me, on a 16gb class2 microSD formatted to FAT32. Occasionally I'll get some lag (presumably due to the slow SD), but it never freezes and I've played through to the 8th badge without any other disruptions.
Enjoy
Finally someone who knows his stuff. Thanks.
This is the solution I gave...I don't really understand what you're talking about =\
And others have already stated that the solution I provided works 100% for them..
~Melody
Missed a keypoint: microSD class.
Well, I have done everything you're talking about (yes, I selected the clean mode with a patched rom) and the game loads, but, it doesn't find my .sav. The game only allows me to select new game, options, etc. What I am doing wrong?
EDIT: Now it works! I just used de DS-Scene Rom Tool with another clean rom and applied the patch. Now it works perfectly on clean mode (a bit laggy, but it's better than nothing). BTW, I can play PWT just fine (I just have defeated Burgh in the Unova Leaders Tournament )