I have a OLD3DSXL on 22.214.171.124E and i have the new Menuhax 3.0. I know what homebrew launcher cant be used for a downgrade at this version... (im not a noob) but i was thinking if i can do a thing. First do use the new hax for do a sysnand backup with dscrypt9. Later use the dsi hax with my Arm9LoaderHax 2DS than i did thanks to guys from this forum. When all finish and if i can get a Arm9LoaderHax on this 3DS restore the nand backup. I dont want lose my friends list on this 3DS each time u do a system transfer or whatelse. The end would be a hacked 3DS with my first stuff. But i dont know if my 11.0 3DS would be bricked doing the backup with dscrypt9 or its safe and if i would lose the Arm9LoaderHax if i restore my nand without it.