NDSi firmware for R4

[cposeidon]

Guys , can someone please help me? I've spent almost half a year finding a firmware that will work for my DSI , my R4 card won't work since I updated my Dsi and it's really making me sad,
no games, no things left to do
give me the link if you know how thank you in advance

[zoom_rich]

Can't you just buy an older DSi?