Returning to 3ds after a long time. Need some help.

You can install cfw and play region free.

 

Here is a provided link: https://gbatemp.net/threads/tutorial-installing-rxtools-custom-firmware-3ds-and-2ds.390867/

 

You can get a game that has 9.2 on it (Do your own research on that) or you can use safesysupdater to update using cia files to 9.2 (Do your own research on that)

MAKE A NAND BACKUP FIRST!

 

There is no game in the Japan region that has 9.2.

That is for Old 3DS not New 3DS.

It will be a lot harder than SockNaste is making it out to be, do a search of the forums for updating Japan n3ds. There was a method for a bit involving hosting your own server but then the files required were removed. There have been other things since then, but I am not up to date on it.

 

If you don't find what you're looking for, you could try updating to <10.4 and using safesysupdater?

 

That won't work, using Sysupdater while in Gateway mode results in a brick. It is also hard to get into homebrew because there is no QR code for firmware 8.1 (for Ninjhax 2.5). And JPN 8.1 consoles don't have a browser. This has all been rehashed a number of times in the main thread about updating 8.1 n3ds consoles.

 

Use Ninjhax 1.1 off of Smealum.net.

 

Ninjhax 1.1 requires a browser which JPN 8.1 n3DS consoles do not have.

 

So I think the only option is update via cartridge? I don't have any clue about gw mode so I cannot help too much in that issue

 

There are no cartridges for the Japan region containing 9.0, 9.1, or 9.2 updates. If there were it wouldn't be such a big issue :-)

 

Then... Some cartridge with <10.4 and using oothax to downgrade?

Sure is hard, I'm out of ideas...

 

Yeah this is probably possible, not sure on status of 10.3 and less updates in Jpn!! There probably are some. OP said he had other exploitable consoles so loading the save on OoT should be possible.

 

its not simple . . . but its what you wanted
[GUIDE] Upgrading 8.1.0-0J to 9.2.0-20J

 

Isn't it possible otherwise to boot rxTools's Devmode and sysupdater using OoT since he has OoT and another hacked 3DS ? Not sure what firmware versions oot3dhax is compatible with.

 

if only it were that simple