I cannot do this no matter how hard I try, Ive went into sysnand virtual and found the save file for the Pokemon sapphire vc, and when I try to inject my save file from mGBA it says the injection failed. The only time I had success with the injection was when I edited the sav from sysnand...
I may try the new ram site, and download more RAM to my Switch. Not sure if ddr3 is the right ram
for it tho. Edit- no it uses floppy Ram, just like @AncientBoi