Hacking 4.2 settings menu CIA to boot gateway on luma.

[Ryccardo]

I understand. Still, how do I downgrade to 4.2 on an EmuNand?

Apart from flashing a ctrtransfer image of the desired version (assuming it exists) (or, even better, a backup of your own console on said version), the classic downgrade involves "simply" obtaining the full set of cias for the desired version and installing them (for example, with the SysDowngrader homebrew)

The caveats are:
1- since the kernel included with 11.0, there are enforced minimum versions of titles to be installed - some CFWs bypass this (or you could simply ctrtransfer/restore to a lower version first)
2- you can't legally download directly from Nintendo older versions of key titles, since they have been removed from servers

 

[Deleted User]

Ok, I understand the drive behind your motivation, you should see the crazy shit I do to my 3DS. But that being said, what you are asking for either isn't possible as the method was patched out years ago or would require a lot of steps and risks bricking your system. If you don't have any of the tools to fix a brick, then you are SOL until you do. Even if you accomplish your goals, what's the payoff? I am not one to judge people doing crazy shit to their systems, but I feeling you aren't very experienced here and you are getting way in over your head.

it removed b9s when booting gw mode. not only black screen but now b9s removal.

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it removed b9s when booting gw mode. not only black screen but now b9s removal.

And fixed it by reinstalling bannerbomb3 lol.

 

[The Catboy]

it removed b9s when booting gw mode. not only black screen but now b9s removal.

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And fixed it by reinstalling bannerbomb3 lol.

You realize that I am just going to tell you that are going brick your system, right? I literally warned you that this risks your B9S install. You are going to brick your system at this rate

It's really concerning that you are considering doing these kinds of projects and not even knowing the basics of GM9. At best you are risking your B9S install, at worst you are risking bricking your system. Do you even have a method of fixing your system if you do brick it or cause your B9S install to be removed?
https://3ds.hacks.guide/godmode9-usage.html