Currently setting up A9LH, got a few questions.

I am following MrMario2011's video guide and am at 17:08. Instead of using regular sysupdater, I used PlaiSysUpdater instead. At the very end installing native firm, it failed. I was told to open otp and restore the emunand backup. Attempted to downgrade twice, both times failed. Is this a sign something is wrong? I have a New 3DS XL.

I have a few other questions.

18:12 to...

Currently setting up A9LH, got a few questions.