I have an R4 (a legitamate one) with the latest Wood R4 firmware. I had no problems with it for a LONG time, but, until recently, my L button stopped functioning properly. The L button clicks just fine and only seems to work when I press it hard or differently. I've had this problem before with my previous DS when it worked for a quite a while then suddenly my L button wouldn't function as properly. I've yet to test it on other flashcards or regular DS games. Can someone else tell me if anyone else has had a similar problem and may know of any kind of solution. Much appreciated.