Sorry, let me clear what I've done.
On my 2DS I've followed the steps from Gateway until 2.x SysNAND, from there, I just installed A9LH from Plailect's Guide to be able to use Luma and Gateway. My 2DS is fine now.
My problem:
On my N3DS (9.2.0-20U), I followed the steps from Gateway:
- Boot into GATEWAY 3DS menu using Oothax
- Pick the format emuNAND option from the menu and create a NAND Backup (Which I can confirm that works)
- Boot into GATEWAY (emuNAND) mode using Oothax again
- Make sure you have WiFi configured and working correctly
- Bring up the OSD, select GATEWAY Time Machine
- Launch GATEWAY Time Machine, select 2.x downgrade
- Boot back into GATEWAY 3DS menu after rebooting (Again with Oothax)
- Select A9LH Installer menu option
Here is where I'm stucked, just after press Star to, that I assume emuNAND 2.x is installed on SysNAND, I get the message:
"FATAL ERROR:
Your EmuNAND is not 2.x yet
Press A to continue"
And then my N3DS shut off, I can start normally my N3DS, but if I try to go to EmuNAND, I'm getting a Black Screen. I've already tried reinstalling EmuNAND, erasing "Nintendo 3DS" folder.
I haven't tried Menuhax yet. But, should I? or is it there any fix for this? Am I missing something?