Hacking DSTWO+ No Longer Working on 3DS (But for the worse?)

[AtSburbsEnd]

so a while back my 3DS stopped loading my DSTWO because I thought it was 10.7.something

I got a N3DS, and with the old one I changed thwe motherboard to that of an 8.something 3DS, and my DSTWO still doesnt work. So now I know it's the DSTWO. But what aboutit? Still highest update avalable for DSTWO and all that, I even reformatted the SD and re-downloaded the firmware from the DSTWO site, and to no avail