Hi!
I had downgraded my 10.3 3DS, installed RXtools, FBI following this tutorial:
Everything was working great until I decided to play DSiware games. A friend told me that unlike 3ds cia, dsiware cia should be installed in sysnand. I did and when I went to play it on emunand, the rxtools boot via nintendo ds profile stopped working. Trying to repair it, I messed it up and rxtools stopped booting from the browser too. So I formatted de SD card and followed the same tutorial. But I didn't know that 10.4 had now been released and yeah, the end of the video tells me to update, I did as told and now I have a freaking 10.4 3DS.
Because I had installed everything before updating, is there anyway way for me to access rxtools again or, as i expect, I'll have to wait until a new exploit is finally found again and I can downgrade?