Hacking Homebrew Updating sysnand and emummc after a year+

CollegeBoard · Oct 25, 2021

I'm just getting back into my Switch again after more than a year (COVID induced circumstances), and I want to update both my sysnand and emummc to the latest. I know I can probably read through all the atmosphere release notes since when I last updated but there's just so much maybe the experts here can give me some quick pointers on things to look out for/major changes in HOS and atmosphere.

For sysnand, I'm on 10.1.0, can I just update to the latest normally? Or are there some catches? I remember before one of the updates also updated the cartridge resulting in my non-updated emummc to not have access to the cartridge slot anymore. Are there similar catches if I went straight to the latest firmware? If so what should I update first between sysnand and emummc?

For my emummc, I'm on 8.1.0 and AMS 0.12.0 (very old I know). I assume I should update my AMS first before updating the firmware? Are there any catches here going from something so old to the latest in one shot? Should I update my homebrew at the same time too or should I do it after (is AMS backwards compatible for old homebrew or vice versa?)? And is the go-to tool for updating emummc firmware still choidujournx?

thesjaakspoiler · Oct 25, 2021

Personally I prefer ChoidujourNX but a utility called 'Daybreak' is also available now :
https://www.nevercholt.com/how-to-use-daybreak-to-update-the-firmware-of-a-nintendo-switch/

About the cart reader, It also has some sort of firmware.
If the main firmware contains an update for the cart reader, you need to apply it if you want to use it.
This creates a problem when your emummc is running an older firmware that will not be able to use the cart reader once you update it.

bitcrilk · Oct 25, 2021

So did you update it? Can it work?

CollegeBoard · Oct 25, 2021

thesjaakspoiler said:
Personally I prefer ChoidujourNX but a utility called 'Daybreak' is also available now :
https://www.nevercholt.com/how-to-use-daybreak-to-update-the-firmware-of-a-nintendo-switch/

About the cart reader, It also has some sort of firmware.
If the main firmware contains an update for the cart reader, you need to apply it if you want to use it.
This creates a problem when your emummc is running an older firmware that will not be able to use the cart reader once you update it.

Thanks I've looked into daybreak I'll use this for updating emummc since it looks like it comes with AMS stock.

While looking into daybreak I also saw this from one of the previous AMS release notes: https://github.com/Atmosphere-NX/Atmosphere/releases/tag/0.19.0
"Atmosphère no longer uses the /contents/ folder for its own programs.

Please Note: In order to facilitate this change (and the desired behavior), the first time you boot after extracting a release zip, atmosphère system modules inside /contents/ will be deleted."

And then later in the 1.0.0 release notes: https://github.com/Atmosphere-NX/Atmosphere/releases/tag/1.0.0
"The cleanup to ease the transition from < 0.19.0 to 0.19.0 has been removed."

Does this mean I would have to first update from 0.12.0 to something in between like 0.20.0 before going to the latest 1.1.1?

eyeliner · Oct 25, 2021

Remove all folders except switch and Nintendo from your SD. Unzip atmosphere there. Get the sigpatches as well.

Boot your console into sysNand. Update.
Play a legit game to see all is well.

Get offline firmware files. Slap them somewhere in the SD card. Get daybreak. Slap it in the Switch folder.

Boot your emunand. Run daybreak. Update the version with the files you got. After 5 minutes of not responding, press home button. Then return to daybreak for your system to update.

All will be fine, after Covid.

CollegeBoard · Oct 25, 2021

Wow thanks I'll try this out tonight.

eyeliner said:
After 5 minutes of not responding, press home button. Then return to daybreak for your system to update.

Wait are you being serious here?! Is this a bug? or a feature?

eyeliner · Oct 25, 2021

CollegeBoard said:
Wow thanks I'll try this out tonight.

Wait are you being serious here?! Is this a bug? or a feature?

No, it's true. I had to do this. Read it somewhere and it worked.

CollegeBoard · Oct 29, 2021

I managed to get everything up to date with your steps and with daybreak, thank you guys!

Hacking Homebrew Updating sysnand and emummc after a year+

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