There are three different methods of installing boot9strap using DSiWare on 11.7.0.
The first method, Seedminer, requires a PC with a powerful graphics card. There is an online helping service for Seedminer if you do not have access to such a PC. The two other methods require a system transfer from a hacked 3DS.
The Seedminer method only requires a cheap DSiWare game, available from the eShop. Additionally, access to CFW or the Homebrew Launcher is needed for extracting your 3DS’ movable_part1.sed file, and a PC with a powerful graphics card is needed for bruteforcing the movable_part1.sed file into a movable.sed file. The
online Seedminer helper service can automatically do these things for you if you do not have access to them.
The method uses a series of oversights in the 3DS’ security, detailed
here.
The latter two methods require two devices. One 3DS (or 2DS) must be running boot9strap and is referred to as the
source 3DS, while the other 3DS (or 2DS) is on stock 11.7.0 and referred to as the
target 3DS.
Both of these methods will assume that the 3DS running custom firmware is using boot9strap and has completed this guide. While it is possible to do these methods with some other kind of custom firmware, that is out of the scope of this guide.
Both of these methods use a combination of the “FIRM partitions known-plaintext” exploit detailed
here, and an oversight that allows DSiWare titles to read and write to anywhere in encrypted NAND.
Both of these methods require you to
System Transfer from a CFW 3DS to a stock 3DS as part of the steps. System Transfers will work in the following directions
only:
hope this helps OP
(as long as you get the right DS flash card, as some carts do not function (at all) after NTR boot method.
