This tutorial uses TegraRCM command line to send payloads to RCM enabled Switch.
Command line is used since it offers a more detailed explanation on what is going on.
So it is a definitive way to confirm if your Switch is patched or not without further questions.
This tutorial does not make any modification to your Switch console.

Requirement:
No Micro SD Card is required.
1. Any way of entering Recovery Mode. Please read here, https://gbatemp.net/threads/the-ultimate-list-of-mods-to-enter-rcm.502145/
2. biskeydump.bin payload(please get the latest version, as of 30th July 2019, the latest version is V9), can be downloaded from https://switchtools.sshnuke.net/
3. TegraRcm GUI, can be downloaded from https://github.com/eliboa/TegraRcmGUI/releases
4. USB C to USB A cable
5. A PC with USB port (Sorry I don't have Mac so I could not cover this area)

Step-by-Step (in total 7 steps):
1. put in your RCM Jig on the right joy con rail. Press and hold Vol+ then press the power button.
You should see a black/blank screen after you press the power button.
If you see a Nintendo logo, you can power off your console and try to adjust your RCM Jig position.

2. To install APX driver
2.1 Launch TegraRcm GUI, go to Settings tab, click on "Install Driver" button.


Confirm the driver installation.


2.2 For those having problems installing APX driver :
Install and launch Zadig. Plug your Switch in RCM mode, then select Options > List All Devices.
Select the APX device and check which driver is installed for this specific device. If libusbK is not the current driver, install it.

(This step is copied from https://gbatemp.net/threads/tegrarcmgui-simple-gui-for-tegrarcmsmash.503510/)

3. Plug in USB cable from your PC to Switch(in RCM).
Open TegraRcm GUI and you should see this window with "RCM OK".


Alternatively, you can use Device Manager to confirm if the APX device is recognized.


Now you can close the TegraRcm GUI application.

4. Copy biskeydump.bin to the TegraRcm GUI folder.


5. Open a command line and go to the TegraRcm GUI folder.


6. Run this on the command line

TegraRcmSmash.exe -w biskeydump.bin BOOT:0x0

7. Check the result
7.1 Switch accepts and executes payload, which mean your Switch is not patched.
Please refer to 0X7000


You will also see QR code on your Switch screen.

7.2 Switch accepts but does not executes payload, which means your Switch is patched.
Please refer to 0X0000

 

[magico29]

Why dont you guys get consoles from ebay. Right there is a 85% chance of get old revision switch.

 

[wurstpistole]

Why dont you guys get consoles from ebay. Right there is a 85% chance of get old revision switch.

Not everyone wants a used console. Also I'd say the chance is way, way higher, given that the patched units only appeared a few weeks ago

 

[magico29]

Not everyone wants a used console. Also I'd say the chance is way, way higher, given that the patched units only appeared a few weeks ago

They not used,i got 9 switches as today
And all of them brand new. Just in case i rather get a used one on lower fw than a brand new patched!! You already lnow that baby.

 

[Andalitez]

They not used,i got 9 switches as today
And all of them brand new. Just in case i rather get a used one on lower fw than a brand new patched!! You already lnow that baby.

Just curious why you add "baby" to almost every post you make?

 

[Starvin]

I'm getting "Smashed the stack with a 0x0002 byte SETUP request!" what does this mean?
I can't get any payload to work. I'm trying to do this on a virtual machine on a mac.

 

[MarzDaindigo]

i got a 0x0000 error...

i can enter rcm fine but after zadig driver install i cant run any payloads

my switch is 4.1 brand new red and blue joycons, ive done my other switch so idk why this on isnt working right im sure it isnt patched

 

[Draxzelex]

i got a 0x0000 error...

i can enter rcm fine but after zadig driver install i cant run any payloads

my switch is 4.1 brand new red and blue joycons, ive done my other switch so idk why this on isnt working right im sure it isnt patched

A 0x0000 error means the console is patched. The fact that the console is brand new and running 4.1 is additional evidence for this.

 

[fst312]

Have you installed driver ?

Turned out my switch was hackable, I ended up ordering a different usb c cable and everything worked out. Got the qr code. My other cable wasn’t showing the apx driver I needed. Good thing too since I had till August 8 to return it to amazon if it wasn’t hackable.

 

[marteen]

Hey,

I tried to test my Switch with biskeydump. The TegraRcmSmash Result is:
Uploading payload (mezzo size: 92, user size: 76328, total size: 142544, total padded size: 143360)...
Smashing the stack!
Smashed the stack with a 0x0002 byte SETUP request!

The payload is not executed and my Switch freezes.
What confuses me is that on the back of the Switch it says: Made in China 2017?! Only tested it via TegraRcmSmash on a Mac via Parallels (Win10).

 

[Thandor]

Hey,

I tried to test my Switch with biskeydump. The TegraRcmSmash Result is:
Uploading payload (mezzo size: 92, user size: 76328, total size: 142544, total padded size: 143360)...
Smashing the stack!
Smashed the stack with a 0x0002 byte SETUP request!

The payload is not executed and my Switch freezes.
What confuses me is that on the back of the Switch it says: Made in China 2017?! Only tested it via TegraRcmSmash on a Mac via Parallels (Win10).

A guy a few posts over you wrote the same error code and he used a virtual machine on mac too! Perhaps the driver does not work on a mac this way! Can you try a real windows pc?

 

[marteen]

A guy a few posts over you wrote the same error code and he used a virtual machine on mac too! Perhaps the driver does not work on a mac this way! Can you try a real windows pc?

I will try it later with a real windows machine. Thanks for the tip.

 

[marteen]

I will try it later with a real windows machine. Thanks for the tip.

Hey guys,

I tried with a regular windows pc and it worked! My switch is not patched at all. If you experience the same problem just try it on an other pc and not on a virtual machine!
Thanks for your help

 

[Deleted User]

Just got my 1st patched unit. Wont load any payloads will enter RCM.

Installed trinket and no payload splash screen and straight to ofw horizon. Thought it was a bad trinket so I installed another one with same result. Checked serial and sending payloads with tegra and fail.

 

[Khim09]

Is there anyway to identify a patched switch prior to doing this guide? Let's say I wanna purchase a bnew switch, the sales man would not allow me to do this lol. Is there any way? Like looking at the box, serial no. prefix, etc. TIA.

 

[Deleted User]

Is there anyway to identify a patched switch prior to doing this guide? Let's say I wanna purchase a bnew switch, the sales man would not allow me to do this lol. Is there any way? Like looking at the box, serial no. prefix, etc. TIA.

Check out the switch by serial thread.

 

[Slartibartfast42]

Why dont you guys get consoles from ebay. Right there is a 85% chance of get old revision switch.

First, there's risk of something being wrong with a used Switch, and it's going to have less battery life less.

Second, it's about sales and stuff. I wanted to get mine from Bestbuy because Bestbuy was giving away a free game with the console, which I plan on exchanging. Also I could use a bestbuy gift card. Ebay prices aren't low enough to match that.

 

[magico29]

First, there's risk of something being wrong with a used Switch, and it's going to have less battery life less.

Second, it's about sales and stuff. I wanted to get mine from Bestbuy because Bestbuy was giving away a free game with the console, which I plan on exchanging. Also I could use a bestbuy gift card. Ebay prices aren't low enough to match that.

I got you !! True.

 

[LagerX]

So, i just use the GUI and sent the payload and i got the QR code and a emote. Then why cant run rajnx or reinx??? on my switch (4.1.0) im n00b on this

 

[Slartibartfast42]

If I don't trade with a stranger, I will probably just end up trading with my nephew. So I will get a patchable system eventually.

 

[Slartibartfast42]

Anyone know if gamestop checks serial numbers? Could you just buy a second used switch, transfer data, return new switch to gamestop instead of the used one. Everybody wins?