This tutorial will allow you to install Browserhax then HomemenuHAX & finally launch a Rxtools CFW from coldboot.
To make a full working tutorial, I tried to gather all informations possible around GBAtemp.
This tutorial works for me, i own a New3DSXL EUR in 9.0 firmware, it sould work until 9.2​

Video tutorial made by @Ericzander​

Requirement :
- A 3DS, 2DS, New3DS between 9.0 and 9.2
- Use a theme at leat once
optional :
- Emunand with a Manager installed on it
- blank N3DS/3DS & Blank SDCard

BrowserHAX

1) Download Smea’s starter pack: #LINK and extract the files on your SDcard.
1.1) Download the modified MenuHAX : #LINK , put in SDcard/3DS & overwrite.
2) If you have never use a theme on your 3DS, go into the theme setting & wait for the preparation to finish then return in home menu.
3) 1st you have to turn off the Wi-Fi, next open the 3DS camera by pressing L & R at home screen, touch the QR icon at bottom-left of the bottom screen and scan the QR CODE :

then open the internet browser when the message appear.
4) The connection will fail since there is no internet, press home and activate the Wi-FI. Launch again the internet browser and wait until the Homebrew Launcher is launched. The bottom will flash into different colors, yellow, gray, blue & red.
For O3DS user : When you launch the internet browser you have zoom-in several times then go in the upper-left. You will see a slide bar, you have to click a the end of the bar. You may have to retry if it doesn't work, you also try to wait 20 seconds before clicking & hold the A button when you click on it. IT CAN BE REALLY HARD TO GET INTO HBL !!!!
5) Once you are in the Homebrew Launcher browse through the homebrews and select MenuHAX 2.0.[/code]

MenuHAX 2.0 BY YELLOWS8 & EDITED BY legofan623 (READ ALL FIRST !!!)

6a) Now that you are are in MenuHax manager, select “Install” and MenuHax will be installed. Press A to go back at select screen & quit if you don’t need anything else.
6b) You can configure the button to use to boot MenuHax, select “Configure/check haxx trigger button” & choose the option that you want to use.
- Type1, Boot MenuHAX with selected setting
- Type2, Boot Sysnand with selected setting
- Type 0 is default, L to boot MenuHAX

Exemple :
- Autoboot MenuHAX type1, select type 1, touch the bottom screen.
MenuHAX will autoboot when the 3DS is turned On & if any button is hold at boot the 3DS will boot into Sysnand.
- Autoboot MenuHAX type2, select type 2, hold specific button or combo button then touch bottom screen. HomeHax will autoboot, if you hold your specific button or combo button the 3DS will boot into Sysnand.
- Non AutoBoot MenuHax, select type 1 & hold specific button then touch bottom screen if no button is hold, Sysnand will boot if specific or combo button is hold MenuHAX will boot.

6c) You can change the boot screen image by choosing “configure MenuHAX boot logo”.
You will a 800x240 (3D work, so non 3DS logo, use twice the same picture (400x240)) png file named “imagedisplay” & put in SDcard/3DS/MenuHAX_manager then select “configure MenuHAX boot logo”
6d) If you want a custom theme on your sysnand with MenuHAX, put the body_lz.bin and BG.CWAV into SDcard/3DS/MenuHAX_manager & choose “Install custom theme” then select “install” for install MenuHAX
6e) If you want a basic theme on your sysnand with choose “Setup a basic color theme” then select “install” for install MenuHAX

CFW - RXTOOLS

This custom firmware will allows you run .CIA.

1) Rename the boot.3DSX in your SDcard into bootHBL.3DSX
2) Download Rxtools boot.3DSX (updated) :
TYPE1 : https://gbatemp.net/attachments/rxtools-rar.26153/
TYPE2 : http://www.mediafire.com/download/ydvv3aa3mk1kuy7/rxtools.3dsx
Use Type1, if you have a low boot rate, try Type2. If it's still not working try CTRbootmanager
3) Put the Rxtools.3DSX of the extracted zip in the 3DS SDcard root
3.1) Rename the Rxtools.3dsx to boot.3dsx
4) Download
- Rxtools older release : https://mega.nz/#!KQ1HVDLZ!TJhiM4zQlknFSqdkDDf8oGMHaNod6-WbR_ggznC8b3c
- Rxtools nightly build (unstable use older release if rxtools does not work correctly): https://lavanoid.github.io/ or https://www.dropbox.com/sh/blmecish9rb1r87/AACOS5s8u0xucXy59vZk6i1pa?dl=0 (last one)
5) Extract rxtools folder from Rxtools archive to sdcard root.

Spoiler: ALTERNATIVE METHOD if you want to install multiples CFW and use Homebrew launcher at the same time

1) Rename the boot.3dsx into boot_hb.3dsx
2) Download Rxtools nightly build : here or on dropbox
3) Extract rxtools folder from Rxtools archive to sdcard root.
4) Download : CTRBootManager
5) copy the two files inside the archive to your SDcard root

FOR NEW3DS USER :
6) Download Reinand 2.1 CFW
7) In Reinand archive find firmware.bin (in rei folder) the MD5 must be 006559E2567DC7DF6C0F1AF17EDD9CE8
7.1) extract it to rxtools/data (you may have to create it)
7.2) rename the firmware.bin into 0004013820000002orig.bin for old release of RXTools or 0004013820000002.bin for latest release of RXTools.
8) Put back SDcard to the N3DS
9) Power on your New3DS with your homemenuHax method (L or not)
it should boot Rxtools and Emunand.

FOR O3DS, 2DS USER :
older release :
DL link : https://mega.nz/#!KQ1HVDLZ!TJhiM4zQlknFSqdkDDf8oGMHaNod6-WbR_ggznC8b3c
6) Find the firmware.bin ont the internet, the MD5 MUST be A9DCD99A360E8629810F8ED08403D746
7) Put the Firmware.bin in Rxtools/sys
8) Put back SDcard to the O3DS
9) Power on your New3DS with your homemenuHax method (L or not)
10) For the first boot you will see the installation suite, wait until the 6 square are full.

newer release, you will need Python installed on your computer :
6) use the "cdn_frm" file in the "tools" directory of the rxtools to generate a folder named "firm"
7) Put the folder in rxtools folder
8) Put back SDcard to the O3DS
9) Power on your New3DS with your homemenuHax
10) For the first boot you will see the installation suite, wait until the 6 square are full.
it should boot to emunand automatically

You can use other CFW if you don't like Rxtools
For CakesFW
CakesFW thread : https://gbatemp.net/threads/release-cakesfw.391200/
CakesFW boot.3DSX : https://www.dropbox.com/s/eigz92hojmnelrs/CakeBrah.zip?dl=1
Take the Cakes.3DSX , rename it Boot.3DSX & put in SDcard root

For Reinand
Reinand thread : http://gbatemp.net/threads/source-release-reinand-n3ds-cfw.394309/
Reinand boot.3DSX : https://mega.nz/#!dp4knbDT!TDKIFrEbbJG2g1R4m7b9TC_JE63Fl7BTS0aKdYnALsw
Take the Reinand.3DSX , rename it Boot.3DSX & put in SDcard root

Install a CIA manager : O3D, 2DS ONLY & Unlinked NAND ONLY ! (for the moment)
- boot your 3DS
- Hold L at debug screen toget into Rxtools menu
- go to advanced tab (press right)
- Select "Install FBI" & choose "emuNAND" by press the Y button
- Press the B button, a message should appear.
- Keep in mind the region of your 3DS & number of the line "Version of TMD : XXXX"
- Power off your 3DS and put your SDcard in your computer
- In the rxtools archive of this guide or any nigthly go to Release/Tools/fbi_injection/Your 3DS Region/The version number of TMD and copy the 2 files at the root of your SDcard.
- Put Back your SdCard into you 3DS boot to RXtools menu
- Go to Advanced > install FBI > choose Emunand & it should install FBI on your Emunand
- Keep the files by pressing B on the follow screen.
- Boot emunand and launch the safety app (yellow triangle)
- it should launch FBI
- Instal either big blue menu or any of your CIA.

More informations :

- if you have trouble to get into emunand after boot Rxtools follw this order of installation :
- Format SDcard
- create emunand : put launcher.dat & use the web browser to get gateway menu, select format
- unlink emunand : go to Settings > remove your SDcard from 3DS > orange icon (bottom-right) > format
- activate theme on sysnand : put back sdcard, use a theme
- run browserhax : read guide
- install themehax : read guide
- install rxtools : read guide
- launch rxtools : read guide
- update emunand in rxtools : go to setting check that there is RX-E before firmware, update in settings
- reboot

- If want you want use differents Boot.3DSX at the same time, maybe a CFW and Homebrew Launcher, you can install Ctrbootmanager. It allows to choose which boot.3DSX or any files to boot when you switch on your 3S with HomemenuHAX.
Link : http://gbatemp.net/threads/ctrbootmanager-3ds-boot-manager-loader-homemenuhax.398383/

Since ctrBootManager boots rxTools directly from code.bin, it is working very nicely as a replacement for the rxTools boot.3dsx. Anyone having problems should give that a try. And if you want your boot time to be fast as possible, change the timeout to 0 in boot.cfg, and if you ever need to boot into the menu, you can just hold select.

- If 3D is broken just close your 3DS and open it should fix the 3D.
- If you want to boot in sysnand with homemenuhax autoboot just hold any button at boot.

- If you have a black screen tell in the comment what is the last thing that appear on your screens
- if nothing work i suggest you to format your SDCard & retry every step of this guide, do not skip any of them, some old files on your sdcard may prevent the good behavior of this guide.

 

[Kyrara]

i have a little problem.
I have made all the steps from the tutorial but they dont boot up to the EmuNAND.
I start the New3DS with L and the ThemeHax start after them the screen goes Black and nothing happens.
Anyone knows what i can do?

My infos:
New3DS XL with v9.2
Unlinked EmuNAND v9.5 from Gateway
64GB Micro SD Card.

 

[chronoss]

I boot to ninjahax, why ?

 

[wormdood]

I boot to ninjahax, why ?

the boot.3dsx on your sd card root is that of ninjhax you need to back it up on your computer (or rename it)then drag and drop the .3dsx for rxtools (or other cfw) on the sd card root and then try to load it

 

[chronoss]

It's ok now, i boot very well to rxtools

The modification of rxTools.3dsx to boot.3dsx is don't mention on the tuto

 

[ChrisN8]

I boot to ninjahax instead rxTools

Thx for feedback i update the guide now

I know there already exist many CFWs and Gateway might be forgotten now, but i still use it because i find it easier to use and more handy. Is there anyone who can create a Gateway boot.3dsx?

I don't think there will be a boot3DSx for GW, even if thats will be really cool

 

[Stack3r]

So this isnt possible on a new 3ds 10.1 huh

 

[ChrisN8]

So this isnt possible on a new 3ds 10.1 huh

No, Cfw can be intalled on 9.0 to 9.2 with this method, themes are needed et keys for hack only go to 9.2 max.

i have a little problem.
I have made all the steps from the tutorial but they dont boot up to the EmuNAND.
I start the New3DS with L and the ThemeHax start after them the screen goes Black and nothing happens.
Anyone knows what i can do?

How many times did you try boot ? Some times you can have bad boot, do to retry.
Did you rename the rxtools.3DSX to boot.3DSX ?

 

[RealLatias]

Hey Chris, can i do this on 10.1 since it can still use homemenuhax and browserhax? Or is this custom method only limited to 9.0 to 9.2 in some other way.

Thanks in advance,
Latias

 

[Deleted User]

Hey Chris, can i do this on 10.1 since it can still use homemenuhax and browserhax? Or is this custom method only limited to 9.0 to 9.2 in some other way.

Thanks in advance,
Latias

cfw is only limited to 9.0-9.2

 

[RealLatias]

cfw is only limited to 9.0-9.2

Thank you.

 

[riggs]

So I've got this all up and running, auto boots to ReiNAND, but I can't launch my R4i card from emuNAND any more ("An error has occurred..."). Still launches from sysNAND no probs. Is this just a caveat with running HMH, or is there something I can do to get it working again?

 

[ChrisN8]

So I've got this all up and running, auto boots to ReiNAND, but I can't launch my R4i card from emuNAND any more ("An error has occurred..."). Still launches from sysNAND no probs. Is this just a caveat with running HMH, or is there something I can do to get it working again?

Maybe if you installl the DS flashcard fix .cia but i really don't know if it will work in emunand or if it work at all, i never try since i don't use DS flashcard. Look for more informations before testing.

 

[Hoang Tran]

Thank you very much. I am now able to coldboot straight into Reinand on my n3ds xl emunand 9.5

Much appreciated!

 

[[]KAOS[]Casey]

I can't boot ninjhax 1.1b directly; but I can using boot_manager-b05. Using boot-manager as my boot.3dsx, I can also launch reinand directly after editing the boot.cfg using path = "/reiNand.dat"; offset = "0x12000";

Pretty neat. Now I never need to touch sysnand. Thanks OP.

 

[Kyrara]

How many times did you try boot ? Some times you can have bad boot, do to retry.
Did you rename the rxtools.3DSX to boot.3DSX ?

I have test it 15 times. And yes i have change the 3DSX file ^^

 

[Rioluwott]

Does this have a little chance of failing at the boot right?
it is the boot.3dsx problem or the themehax problem?

 

[NakedFaerie]

My problem is when this is installed nothing works.
I want it to autolaunch PastaCFW OR boot directly into sysnand.
I can get it to launch Homebrew Launcher but it locks up when I choose anything.
I can also get it to start RXtools, but it says its setting up SD card then locks up.
Just about anything will make it lock up.
The only way around this is to hold any button on bootup making it useless.

I did what it says, I have it installed but it just locks up everything so it doesn't work.

O3DS, 9.2, installed via ninjhax.

 

[ChrisN8]

My problem is when this is installed nothing works.
I want it to autolaunch PastaCFW OR boot directly into sysnand.
I can get it to launch Homebrew Launcher but it locks up when I choose anything.
I can also get it to start RXtools, but it says its setting up SD card then locks up.
Just about anything will make it lock up.
The only way around this is to hold any button on bootup making it useless.

I did what it says, I have it installed but it just locks up everything so it doesn't work.

O3DS, 9.2, installed via ninjhax.

Did you download the latest release of rxtools ? they are at the bottom of the page
Moreover did you use the firmware.bin of Reinand archive ?

Does this have a little chance of failing at the boot right?
it is the boot.3dsx problem or the themehax problem?

Yeah its hack so it can be unstable & depends on the 3DS too sometimes but it should work normally

I have test it 15 times. And yes i have change the 3DSX file ^^

do you see the debug screen, blue, red scren when you boot your 3DS & homemenuhax ?

 

[NakedFaerie]

Did you download the latest release of rxtools ? they are at the bottom of the page
Moreover did you use the firmware.bin of Reinand archive ?

How will that help when I'm not using RXTools? (BTW, I did that, its the version from the first post)
I want to use PastaCFW.
And I used the firmware.bin file already there, its been there from the start and works fine so far. Does this need a different version?

RXtools boots emunand not sysnand, I have everything on sysnand and my emunand is old so i havent updated it and dont use it anyway but its there.

I can boot into homebrew launcher no problems but everything there will lock up. I cant boot into pastacfw but when i use ninjhax everything works fine.

 

[ChrisN8]

How will that help when I'm not using RXTools? (BTW, I did that, its the version from the first post)
I want to use PastaCFW.
And I used the firmware.bin file already there, its been there from the start and works fine so far. Does this need a different version?

RXtools boots emunand not sysnand, I have everything on sysnand and my emunand is old so i havent updated it and dont use it anyway but its there.

I can boot into homebrew launcher no problems but everything there will lock up. I cant boot into pastacfw but when i use ninjhax everything works fine.

Oh i misread your post but i don't know anything about pastaCFW, so i don't even know if it can be boot from coldboot or HBL your may need a modified boot.3DSx to make it work, all CFW have a modified boot.3DSX to run on HBL or HomeHAX.

Edit : try with this : http://uptobox.com/qg0wj1tyiiyy & copy folder into the "3DS" folder (not SDCard root), run with homebrew launcher. If it works then make a copy the boot.3DSX findable in pastaCFW folder to the root of your SDcard and try booting homemenuhax.