I have an idea - It such a waste doing a hardmod for downgrading once. So thought about: Isn't it possible to drill some holes exactly over the solder points for the nand and pushing some pins into it? Or even better - special made lower case shell for nand access - holes made out with metal and with threads. So whenever someone needs to downgrade a 3ds for someone, he just needs to remove the lower shell and put the modified on and plug the pins in. nand access without destroying the virginity of the pcb. wouldn't be that awesome?