You seem to not to have a way to boot an arm9payload other than arm9loaderhax, which has nand access broken... Perhaps you can find already decrypted firmwares somewhere
So... Found a firmware.bin for rxtools 3.0. Put it in almost every folder.
Still a black screen with a9lh version.
I tried with 5ac8aa3, last standard version on lavanoid. It worked in 9.2. Tried copying the data suite to rxtools with a9lh.
Still a black screen.
I give up for tonight. Maybe I didn't compile it right. Let's wait a bit. I'll try tomorrow again.
Thanx for the patience, though.