Okay so I have the cheat.dat from http://gbatemp.net/index.php?download=5551 I loaded the cheat.dat on my m3 ds simply. It reads most the games listed on there execept some. Such as Yu-gi-oh 5d, and pokemon platnium. Any reasons why it wouldn't? I also have the latest r4 firmware changed into m3 format. I also tried it with the latest m3 firmware but with still no result. Can anyone help me please?