Hacking Question OFW SYSnand update and restart into RCM?

fusobotic · Apr 2, 2020

So I'm transitioning to a clean SysNAND OFW from a stock backup I made on 4.1 and a incognito emuMMC 9.2 CFW (running Atmosphere). I want to be safe and not burn fuses when I update my OFW from 4.1 to 9.2 but also don't want to be banned by using ChoiDujourNX to update it (this has been known to happen right?). Question is: can I enter RCM right after the restart from updating the OFW online through Nintendo to keep fuses from burning? Or is there some way of keeping AutoRCM enabled through that process on OFW?

One way I could think of it working is launching ChoiDujourNX from RCM as a .bin and updating the OFW that way but idk if anyone has made that yet, or if it's even possible?
Or do I need to make an sysMMC too in order to play online to avoid burnt fuses (like ksanislo says in this thread)

Just for reference I have an old non-patched switch with 5 fuses burnt, so I could run Caffeine but I don't want to since I have a dongle.

fusobotic · Apr 3, 2020

Ok, I figured out that you can just hold down the volume button exactly as the update restarts with a jig in to re-enter RCM and not burn fuses. Then once I was in hekate I could re-enable autorcm

However, looks like emuMMC does not allow stock booting for the current firmware:
https://github.com/m4xw/emuMMC/issues/7
https://github.com/CTCaer/hekate/issues/250

Right now I have my OFW updated to 9.2 and am just booting from hekate stock- no emummc.

Does anyone know if there are any plans to allow booting into sysmmc, looks like the last update was several months ago?

DafKA30 · Apr 3, 2020

How did you update your Sysnand to 9.2.0? With ChoixdujourNX? But now you can't go online...

fusobotic · Apr 4, 2020

DafKA30 said:
How did you update your Sysnand to 9.2.0? With ChoixdujourNX? But now you can't go online...

I just used the regular official system updater through Nintendo. You can get into RCM before the fuse burns if you're careful enough. I've been online, eShop etc no bans yet fingers crossed.

nodnyl10 · Apr 4, 2020

Quick question.. if you update your sysnand to 9.2 by normal means, is it possible to also update eminand to 9.2 by going to system settings?

Im currently on 9.1 both sys and emu. If i update emunand via System Settings, is sysnand gonna be affected as well?

DafKA30 · Apr 4, 2020

nodnyl10 said:
Im currently on 9.1 both sys and emu. If i update emunand via System Settings, is sysnand gonna be affected as well?

No. Sysnand is not gonna be affected.

--------------------- MERGED ---------------------------

fusobotic said:
However, looks like emuMMC does not allow stock booting for the current firmware:
https://github.com/m4xw/emuMMC/issues/7
https://github.com/CTCaer/hekate/issues/250

What do you mean ? In hekate ini file you can add this lines:

Code:

[Stock (SYSNAND)]
emummc_force_disable=1
fss0=atmosphere/fusee-secondary.bin
stock=1
{}

https://github.com/CTCaer/hekate/issues/292

and it will launch your sysnand.

But it's not what you want to do apparently. Do you want to start your emuMMC without CFW?

nodnyl10 · Apr 4, 2020

DafKA30 said:
No. Sysnand is not gonna affected.

Ok so that means, if i use my Switch, go to System Settings and then see that the AMS is there (an indicator that i am in emunand), i can SAFELY update to 9.2 without problems, right?

After that, since emunand is now gonna be 9.2, i can also use the Atmosphere Updater to update Atmosphere and Hekate to the current version.

Did i miss something or am i good to go for an update and nothing bad will happen?

DafKA30 · Apr 4, 2020

Update your atmosphere and hekate files before upgrading your emmuNAND with choixdujournx.

nodnyl10 · Apr 4, 2020

DafKA30 said:
Update your atmosphere and hekate files before upgrading your emmuNAND with choixdujournx.

Err ChoiDuJour, is it possible not to use ChoiDuJour and just go straight to System Settings and update the emunand there? It wont affect sysnand right?

DafKA30 · Apr 4, 2020

No but you can't use internet on your emuNAND or you will get banned. That's why you have to use other update methods.

Draxzelex · Apr 4, 2020

You won't get banned connecting emuMMC to the Internet. emuMMC was designed to be used online as its the only way for patched users to be on the latest firmware.

nodnyl10 · Apr 4, 2020

Draxzelex said:
You won't get banned connecting emuMMC to the Internet. emuMMC was designed to be used online as its the only way for patched users to be on the latest firmware.

Sooooooooo, its safe to update in emuMMC via tue system settings?

Draxzelex · Apr 4, 2020

nodnyl10 said:
Sooooooooo, its safe to update in emuMMC via tue system settings?

About as safe as updating from sysMMC.

nodnyl10 · Apr 5, 2020

Draxzelex said:
About as safe as updating from sysMMC.

Then its settled. I will update my emuMMC via Sysrem Settings and everything will be fine, right?

DafKA30 · Apr 5, 2020

Draxzelex said:
You won't get banned connecting emuMMC to the Internet. emuMMC was designed to be used online as its the only way for patched users to be on the latest firmware.

yes you can go online but you have a risk of getting banned. Just sayin...

fusobotic · Apr 5, 2020

DafKA30 said:
What do you mean ? In hekate ini file you can add this lines:

Code:

[Stock (SYSNAND)] emummc_force_disable=1 fss0=atmosphere/fusee-secondary.bin stock=1 {}

https://github.com/CTCaer/hekate/issues/292

and it will launch your sysnand.

But it's not what you want to do apparently. Do you want to start your emuMMC without CFW?

This is what I'm doing currently, this is not emuMMC though. The "emummc_force_disable=1" makes it boot my sysNAND rather than a sysMMC if I try to remove that setting in the ini it throws the errors I linked before (the two issues). So yeah I want to be able to launch a clean sysMMC with no CFW just to be safe. I'm fine running my sysNAND clean for now but I'd prefer to use the other way just to keep my sysNAND as clean as possible, prevent burnt fuses etc.

On a related note, is there any risk in running fusee-secondary on sysNAND? Have there been any bans from this?

DafKA30 · Apr 5, 2020

I think you should not try that if you want to be clean as possible.
I was exactly in the same configuration as you. Clean sysNAND on 4.0.1 but at the end I just burn my efuses and updated to 9.2.0. Now I just restart with the jig if I want to go to my emuMMC + CFW.

Hacking Question OFW SYSnand update and restart into RCM?

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