You should be able to, yes. What software are you using to manage the 3in1's functions? The R4 doesn't have built-in support for the 3in1, so you have to use additional software to use its features.
I am looking for a good slot 2 card
but i dont what card are good
currently i own 2 slot 1 card
R4 and Ez flash v
i prefer playing on R4 most of time
tnx in advance
The 3-in-1 expansion pack works with the DS Phat, just make sure you get the full GBA size version. I bought one recently and have no complaints. I've got a R4, which is the same things as a M3 Simply. The rumble is better on the Phat version as well, everyone with the Lite version complains about how noisy it is but mine's as quiet as a field mouse.
It's Just That I Have Been Having a Hard Time Ever Since That I Saw Awful Hate Images of Ami Onuki, Sky (Friday Night Funkin'), Rabbids and Teen Titans Go. I Just Wish that People Would Change and Start Making Fan Art of Ami Onuki, Sky, Rabbids and Teen Titans Go Instead of Just Making Hate Art out of Them for a Change.
i'm sure there's fan art too, but what does it matter? if people hate them, that's their opinion and they're free to have it, that doesn't affect you at all