Hacking Black Screen TegraRCMGUI

[Jnlien]

Hello everybody,
I just bought a Switch with a XAJ70018998 SN (I checked if it was patched and it's not) and I tried to launch a CFW but when I inject Hekat payload with TegraRcmGui and "Smashed the stack with a 0x0000 byte SETUP request!" but nothing happen on my switch.
The firmware is 9.1.0
I tried to :
- FAT32 and exFAT
- use sdsetup with Atmosphere
- manually push the files to my SD card
- use an another USB-C cable

Do you have a solution for me? Is this switch patched ? (this Switch is from March 2018)
Thank you in advance.

 

[ZachyCatGames]

“Smashed the stack with a 0x0000 byte SETUP request!”
Usually means it’s patched. Specifically the “0x0000” part.
Does the serial number in system settings match the one on the system/box?

 

[Jnlien]

No it does not match

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

No it doesn't match.
How is it possible, is it like scam?

 

[ZachyCatGames]

How is it possible, is it like scam?

The one on the system is just a sticker and can easily be removed or replaced, whereas the one in settings is not easily changeable.
If it was advertised as a hackable system, it’s probably a scam of some sort, yeah.