Hacking Atmosphere-NX - Custom Firmware in development by SciresM

duckbill007 · Jun 15, 2026

bth said:
determined by their kernel and FS kernel plugin

But kernel is fully replaced by mesosphere now.

bth · Jun 15, 2026

duckbill007 said:
But kernel is fully replaced by mesosphere now.

this would be a "yes, but aktsually....!" moment,

since the .kips bundled with the kernel are loaded by mesosphere, and is not replaced.

.kip being kernel plugin.

remake in atmosphere: loader, ncm, pm, sm, boot, spl, fs

checklist:

[ X ] loader ( https://github.com/Atmosphere-NX/Atmosphere/tree/master/stratosphere/loader/source )
[ X ] ncm ( https://github.com/Atmosphere-NX/Atmosphere/tree/master/stratosphere/ncm/source )
[ X ] pm ( https://github.com/Atmosphere-NX/Atmosphere/tree/master/stratosphere/pm/source )
[ X ] sm ( https://github.com/Atmosphere-NX/Atmosphere/tree/master/stratosphere/sm/source )
[ X ] boot ( https://github.com/Atmosphere-NX/Atmosphere/tree/master/stratosphere/boot/source )
[ X ] spl ( https://github.com/Atmosphere-NX/Atmosphere/tree/master/stratosphere/spl/source )
[ ] fs (currently only mitm - https://github.com/Atmosphere-NX/Atmosphere/tree/master/stratosphere/ams_mitm/source/fs_mitm )

the parts he asks about, is not implemented in atmosphere -> ask nintendo

scoobydude51 · Jun 16, 2026

Just asking, is 22.5.0 compatible/working or does Atmosphere need an update? I’m seeing some having issues and some booting in fine, even in the stock mmu.

bth · Jun 16, 2026

scoobydude51 said:
Just asking, is 22.5.0 compatible/working or does Atmosphere need an update? I’m seeing some having issues and some booting in fine, even in the stock mmu.

emummc and nogc patches, and am specific homebrew fix needs to be added (but only for 22.5.0 to have functioning emummc / nogc patches)

sysnand should work just fine.

(sys-patch 1.6.2.1 adds the am homebrew fix patch support for 22.5.0 as well)

pofehof · Jun 16, 2026

bth said:
sysnand should work just fine.

I think people already mentioned that sysnand isn't working either. Usually, when it's a major update (X.0.0 or 0.X.0), Atmosphere is broken.

scoobydude51 · Jun 16, 2026

pofehof said:
I think people already mentioned that sysnand isn't working either. Usually, when it's a major update (X.0.0 or 0.X.0), Atmosphere is broken.

that's why i was asking. mixed reports.

NeoGranzon · Jun 16, 2026

Always wait until Atmosphere is updated before updating the firmware,otherwise you will always find yourself with an unusable Switch.

scoobydude51 · Jun 16, 2026

NeoGranzon said:
Always wait until Atmosphere is updated before updating the firmware,otherwise you will always find yourself with an unusable Switch.

that's also why i'm asking.

bth · Jun 16, 2026

the people whose systems dont load on 22.5.0 on sysnand have bloat like missioncontrol etc other sysmodules.

they aren't able to boot because missing am patch required to have homebrew run

edit:
official atmosphere support for it was added

impeeza · Jun 16, 2026

Happy June the 15th?

https://github.com/Atmosphere-NX/Atmosphere/releases

remember always upgrade starting from scratch

pofehof · Jun 16, 2026

impeeza said:
Happy June the 15th?

https://github.com/Atmosphere-NX/Atmosphere/releases

remember always upgrade starting from scratch

Can confirm it works with Atmosphere using fusee. Looks like hekate has updated as well!

https://github.com/CTCaer/hekate/releases/tag/v6.5.3

Vin_Thod · Jun 17, 2026

Selphie said:
I assume modifying kernels is prohibitively complicated to do and thus DDR200 on CFW will never happen?

you can do any kernel altercations if you can sweetie. its your own device afterall :gba:

bth · Jun 17, 2026

Vin_Thod said:
you can do any kernel altercations if you can sweetie. its your own device afterall

the blind should not try to lead the deaf kind of deal.

no he cant.

the kernel might be reimplemented as mesosphere, but the switch kernel has a concept of kernel inline plugins (.KIP), which is part of the kernel itself, and the parts he wants changed is part of FS, which is not reimplemented.

Vin_Thod · Jun 17, 2026

bth said:
the blind should not try to lead the deaf kind of deal.

no he cant.

the kernel might be reimplemented as mesosphere, but the switch kernel has a concept of kernel inline plugins (.KIP), which is part of the kernel itself, and the parts he wants changed is part of FS, which is not reimplemented.

'if he want and if he can' in a sarcastic way lol

Asia81 · Tuesday at 3:51 AM

hello, does someone know if themes and/or homemenu replacement (I want to give SwitchU a try) are ban risky?
If they are, how can I prevent atmosphere to load my themes in sysnand but keep them in emunand?

froggy55 · Tuesday at 4:03 AM

Asia81 said:
hello, does someone know if themes and/or homemenu replacement (I want to give SwitchU a try) are ban risky?
If they are, how can I prevent atmosphere to load my themes in sysnand but keep them in emunand?

if you install the themes only on emmunand then they will only effect emmunand they also are implimented when you launch sysnand with cfw but they are not permanent when you load stock ofw it will be with out the theme. as far as i know there is no way to install a theme to the sysnand as what the installer does is it extracts a copy of the menu files and then loads new theme over the original and is loaded by atmosphere and they are stored in atmosphere/contents/01000000001000 so you dont really need to worry about the sysnand and themes but yes only do it on the emmunand and you will have no problem.

impeeza · Tuesday at 4:54 AM

Asia81 said:
hello, does someone know if themes and/or homemenu replacement (I want to give SwitchU a try) are ban risky?
If they are, how can I prevent atmosphere to load my themes in sysnand but keep them in emunand?

https://gbatemp.net/threads/nintendo-switch-banning-hub-warning.508710/

JigoKuu · 2026-06-24T15:09:03+0100

I am very very sorry if I ask this in the wrong topic (let me know if it is OFF topic here and I will figure something out) or if my question is stupid...

I have Picofly chip + Hekate bootloader, Atmosphere CFW on my Switch. I have a certain microSD card, but many of my games do not fit (not enough place on it, haha). Can I prepare another microSD card with the very same settings (just different games on it) and can I simply... swap them depending on which game I want to play? I could buy a bigger microSD card, too, but since I couldn't really use or sell my current ones, I wanted to ask if maybe swapping microSD cards could also work as an option to save money and not to "waste" my microSD cards.

impeeza · 2026-06-24T19:21:22+0100

JigoKuu said:
I am very very sorry if I ask this in the wrong topic (let me know if it is OFF topic here and I will figure something out) or if my question is stupid...

I have Picofly chip + Hekate bootloader, Atmosphere CFW on my Switch. I have a certain microSD card, but many of my games do not fit (not enough place on it, haha). Can I prepare another microSD card with the very same settings (just different games on it) and can I simply... swap them depending on which game I want to play? I could buy a bigger microSD card, too, but since I couldn't really use or sell my current ones, I wanted to ask if maybe swapping microSD cards could also work as an option to save money and not to "waste" my microSD cards.

Yes, this is not the place, and yes you can do it, be sure you have a exact copy of the atmosphere and bootloader folder on booth cards.

Hacking Atmosphere-NX - Custom Firmware in development by SciresM

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