Help With Getting Saves off An O3DS NAND

hey guys, im new to all of this 3DS mod scene and was wondering is there anyway i can get the saves from my O3DS to put on my N2DS.
my old DS unfortunately came to its end of life. i know about checkpoint and such and tried those but it only restored Mario Kart.
is there anyway to open and pull the saves from my O3DS NAND to put onto the new one?

edit: trying to move post. apologies