I am using a regular R4 on my DS, everytime I load it, it goes to regular DS menu, not r4. I have to take out the r4 and blow on it to make it work. And if i move the DS too fast, it freezes and I have to restart the processes all over. Is my R4 broken?
Make sure the contacts aren't dirty. And if they are, clean them off with a cartridge cleaning solution or alcohol. It's like this - http://www.videogamecritic.net/clean.htm