After I downgraded my old 3ds to 9.2, the 3ds settigns doesn't open, and when I try to update back from the eShop the 3ds goes into a black screen forever. Any solution?
Is this right after you downgraded or did you do other things to your system before you tried to enter the eShop and System Settings?
Right after. Later I tried to install emuNAND, and even if it seems that it worked, I still can't access the settings and I don't have any way to upgrade back to 10.3
The only thing I can think of is trying to update by running Pasta CFW, installing sysUpdater and grabbing the CIAs you need to update to 10.5, then updating through sysUpdater. I don't even know if this is safe.
You said that it seems the EmuNAND installation worked. Have you tried to access EmuNAND through rxtools? You can do that through MenuHax.
If OP can open/install FBI or Devmenu or whatever, then he could try to install the incomplete bits of the downgrade perhaps.
Thaanks, nothing had worked, but after installing rxtools, randomly the 3ds started loading the settings again.
You need to do the downgrade again and it will install the missing titles. I've done this before. I used Cubic Ninja as my entry point though. But since you can get o HBL, you need to have the downgrade finish.
