1.Format the microSD with the Panasonic formatter.
2.Download the current version of AKAIO
3.Decompress (using WinZIP, WinRAR, 7z, etc) the file and put the __aio* folder and akmenu4.nds at the Root (top most directory) of your microSD card
4.Insert the microSD card firmly in the non-spring loaded ak2.1 and ak2i. If your microSD slot is spring loaded make sure it "clicks."
5.Insert the Acekard firmly into your NDS, again make sure it clicks**.
6.Boot up the NDS, select the Acekard from the firmware Slot-1 selection box, and enjoy