So, basically, I decided to install a9lh by following Plailect's guide from square one on my n3DS (126.96.36.199E)... Been really reading a lot on the net, and I followed the guide by the letter so trust me, all files were at the right place on my sd. At the half (I guess?) of the downgrade operation I got nintendo's black error screen... Of course, I read that there is a very small chance of a softbrick and I really didn't expect this... So there's like, nothing I can do besides force update to the latest version (in other words, bye bye to homebrew for now? ) 3DS is working fine after booting it up without sd. I hope I'm asking the question in the right place, and that someone can help me on to what to do next. Thank you!