I have not heard of a RS4 card until I just googled it, but I have never heard of software expiring. is the time on the DS right?? is it aDSLite, or what type of DS is it?? Lastly you say you have the right kernel, by that I presume you mean firmware for your card, if so what is the problem, you might be better off just taking a little time to write your reply, and give as much info as possible, so as we can best help you out.