On your post (https://gbatemp.net/threads/crash-when-downgrading-a9lh.421004/page-2) your 3DS crashed when you were trying to downgrade it. Mine also crashed, and I'm stuck on "HAX INIT" trying to complete my partial downgrade. How did you get around this? Did you keep trying the downgrade until it worked again, or did you do anything in particular?
