About this deal
The part titled "~[Optional] Injecting FBI into SysNAND (For GBA//DSiWare Games)~" covers all the steps in regards to that and goes a bit more into detail on this. Bottom Line: If you want actual 3D support in your 3DS, obviously neither 2DS model is right for you.
It fixes some problems of the original 3DS models, features a large, crisp display, and is the only current model that still displays in 3D. The backlight actually bleeds out the back of the top screen, and all the tops I've seen are a bit warped when closed. Now, I'll say this here, the biggest risk you take is the downgrade, so you should consider using the full A9LH guide, however, if the A9LH process still scares you, then continue on. I'd like replies to this tutorial to be solely on people following this tutorial, otherwise, I can't help you well.
So far, we have autoboot menuhax setup, as well as our Luma3DS configured correctly, and our RedNAND updated to the latest system version.
You can adjust the 3D slider to give the console more or less of a 3D effect, and it actually works as well as advertised.Every inch of the console feels like it has been created for a new generation of Nintendo fans, with the exception of one: the top plate isn't removable and therefore the console misses out on the joyful customisation options seen on the standard model of the New 3DS. It's no surprise they've always been the boss in this area since the heady, humble days of the Gameboy.