Hacking Question Is it available to extract keys from a edev?

[BlankSora]

I want to dump my device for some testing purpose, like put my developed game(not the retail one, just the one I built by using sdk) into yuzu etc..
The current version of firmware is 9.0. Maybe I should find a way to downgrade it at first?
I can enter RCM by holding Volume Up and just click the Power button without keep pressing it. But it seems I can't inject payload on RCM,

Nothing happened on my edev after the output.

 

[Raugo]

Are you sure that switch is unpatched?

 

[BlankSora]

Are you sure that switch is unpatched?

It's not a retail switch, it's a device named EDEV for developer develop games, I'm not sure the concept of patched and unpatched is fit for it or not.
Seems the serial number checker is use for check the retails, not for development device.

 

[Raugo]

What is the manufacture year? If is 2016 or 2017 is unpatched, if is 2019 is patched for sure if is 2018 maybe is patched and maybe not. If the switch is patched you can't use fusee-gelee (the exploit you are trying to use) on it.

 

[Resaec]

TegraRCM says it smashed the stack with 0x0000 byte setup. That is typical for patched Switches.

So no, your Switch is patched and can not use the RCM exploit.

 

[Deleted member 515954]

I think what you need is the sdk.
Where did you get this EDEV?

 

[BlankSora]

I got it from the official route and I have the sdk.
It manufactured in 2019, so I can't do anything about it even I have the sdk?

 

[Deleted member 515954]

Then just use official SDK Tools
Didn't saw the entire post.
To use it onto yuzu, you need keys that aren't available yet or you should unpack it with SDK tool to repack it with hacpack