No *Hax won't boot after Downgrading o3DS from 10.3 to 9.2

Hey Guys,

I downgraded a o3DS for a friend which worked well.
I was able to reinstall menuhax, can boot HBL but when I try to Load Gateway-Menu or PastaCFW or RxTools, I just get a black screen.
Tried to boot Gateway menu through Browserhax => White Screen.

Firmware says 9.2.0-20E

Used "Downgrade Check" Homebrew and I got a log with this information:
No *Hax won't boot after Downgrading o3DS from 10.3 to 9.2