I mean that i use my R4-FLASHCARD with a hack of Pokemon White with new evolutions/attacks/types (Pokemon Blaze Black).I can use WIFI but I dont know if I can trade/battle with people playing the original Black and White,thats the question
In theory, it should work. The only forseeable problem I can think of is that the index numbers of the Pokemon in your hack and the index numbers of the Pokemon in the original game don't match, which would only occur if the hack had fakemon. Otherwise, go ahead and try!
The hack I was thinking of is this one.
If A-text is giving you problems, the best way would be to convert what Oak says into hex, and search for it with a hex editor. If your error message says something about a blahblahblah .OCX, you can actually download that file online to fix it up.