A while ago, I had attempted to downgrade my 2DS (OG model) from 11.2 to 9.2 by using CIAs and FBI. Some CIAs failed to install, but most of them successfully installed. However, the system would not allow me to go to the Homebrew Browser (as I never installed a CFW or B9S), so I powered it off. But now, it just boots to a black screen and won't go any further. I know it's bricked, but I wanted to know if it's fixable by either myself (using NTRboothax) or by Nintendo?