Hacking Revert from GW "fast boot"

[Raytheking12]

I am a complete 3ds noob and followed GW fast boot and installed it. Then I realized how bad this is and want to revert to being able to go to Sysnand and Emunand back and forth.

P.S: I do have a back-up pre-"GW fastboot" nand.bin

How would I do that? Thanks in advance

 

[dankzegriefer]

Install arm9loaderhax like a person with a real brain.

 

[SpencerlyEverly]

Here's how to install the real arm9loaderhax:

If you had a NAND backup from before (Hopefully it's 9.2 or below), put it on the root of the SD and rename it to NAND.BIN. Then use the Gateway menu using the L (Or L+SELECT if your using Gateway Fast-Boot) button and restore that NAND. Then use this noob-friendly tutorial for the rest: https://plailect.github.io/Guide/

If you still want Gateway, then use BootCTR9 as a Luma3DS payload chainloader (SD:/luma/payload/button-letter-goes-here_Gateway.bin), and let BootCTR9 load Gateway.bin by default. So that way, when you hold down a button, you can go to Gateway at times. Luma3DS can be used when you don't have the Gateway card. More info on chainloading is here: https://github.com/AuroraWright/Luma3DS/wiki/Other-features-and-notes#payload-chainloading