[1] Use USB Slim Loader burn the "NEO2_3 bootstarp V1.0.neo" to your NEO2/3 flash memory.
[2] Copy the _boot_ds.nds to your SD/TF.
[3] Turn on nds to run.
Note: The neo V2.xx menu is design for use with MK6 SAVE CART only, if you use the MK4-Mini to boot this V2.xx menu just can get the 2M save games workable.