Hardware RCM using LEFT joycon

[DarkZeros]

Since it is highly likely that Nintendo starts detecting people using RCMs via detecting the PIN10, I was thinking, is the PIN10 of the LEFT joycon used? Is the pinout of the left and right joycons the same?

If the PIN10 is not used in the left one, and the switch pin10 of the left railis not connected to anything. Then is should be possible to use the PIN10 of the left joycon as RCM on the right rail, and still be able to use it safely while connected on the left rail.

What do you think? Somebody has schematics of the Left joycon and rails?
I would test it tomorrow, if I can be sure I will not burn anything in the process

PD: The rails are at least "safe" to be swapped, but the switch does not recognice it as a controller while in the wrong rail.
PD2: The idea is to have a safe RCM modded joycon, without any extra buttons or magnets.

 

[Haymose]

Sorry I'm not sure I completely understand what you are suggesting. From what I understood we use the right joycon rail because the right joycon has the home button. Grounding pin 10 is essential activating the home button while the console is off. I doubt the left joy con rail has the same function but I do not know.

 

[kidcharlemagne]

If they can detect that you're grounding a pin on one joycon, what makes you think they can't detect it on the other one?

If you're worried they can detect it, consider using a temporary jig or a reed switch setup, so it won't be on all the time.

 

[DocKlokMan]

Sorry I'm not sure I completely understand what you are suggesting. From what I understood we use the right joycon rail because the right joycon has the home button. Grounding pin 10 is essential activating the home button while the console is off. I doubt the left joy con rail has the same function but I do not know.

The idea is that it’s bad to permanently mod your right Joy Con because the Switch can detect if pin 10 is grounded while the official OS is running. So since it’s only the right side pin 10, we should mod our LEFT Joy Cons instead. So you place the left Joy Con on the right rail to boot into RCM. This way when you have the Joy Cons attached normally pin 10 is not bridged but you have the convenience of a permanently modded Joy Con.

 

[wicksand420]

The idea is that it’s bad to permanently mod your right Joy Con because the Switch can detect if pin 10 is grounded while the official OS is running. So since it’s only the right side pin 10, we should mod our LEFT Joy Cons instead. So you place the left Joy Con on the right rail to boot into RCM. This way when you have the Joy Cons attached normally pin 10 is not bridged but you have the convenience of a permanently modded Joy Con.

I have the best of both worlds, I installed wires to 1 and 10 pin and ran them to the eject button on the right joycon, works awesome.

 

[DocKlokMan]

I have the best of both worlds, I installed wires to 1 and 10 pin and ran them to the eject button on the right joycon, works awesome.

Do you turn your Switch off to remove your right Joy Con? Because if not, then doesn't it get grounded whenever you take the Joy Con off your Switch?

 

[wicksand420]

Do you turn your Switch off to remove your right Joy Con? Because if not, then doesn't it get grounded whenever you take the Joy Con off your Switch?

I've never had any problems removing my joycon, I made it so when I press the button hard, then I get RCM, but pressing it softly can remove it without grounding

 

[mattytrog]

Since it is highly likely that Nintendo starts detecting people using RCMs via detecting the PIN10, I was thinking, is the PIN10 of the LEFT joycon used? Is the pinout of the left and right joycons the same?

If the PIN10 is not used in the left one, and the switch pin10 of the left railis not connected to anything. Then is should be possible to use the PIN10 of the left joycon as RCM on the right rail, and still be able to use it safely while connected on the left rail.

What do you think? Somebody has schematics of the Left joycon and rails?
I would test it tomorrow, if I can be sure I will not burn anything in the process

PD: The rails are at least "safe" to be swapped, but the switch does not recognice it as a controller while in the wrong rail.
PD2: The idea is to have a safe RCM modded joycon, without any extra buttons or magnets.

Thing is. there actually needs to be a connection in the left side for the nvidia "home" key.

There isn`t one.

There is a reason it is the right joycon and not the left one

 

[GothicIII]

Thing is. there actually needs to be a connection in the left side for the nvidia "home" key.

There isn`t one.

There is a reason it is the right joycon and not the left one

I think OP means using the left joycon to slide into the right side to activate RCM which should work for RCM. This way the secret home button would only activated when the left joycon is in the right side lane instead of always and detectable.

I don't know the pinout but it could be that shorting those pins on the left joycon can make the joycon useless.

 

[DarkZeros]

Ok, update from my side:

- I tested pin10 of the left joycon, it has 1.8V when connected to the Switch (either Rail).
My guess is that is used as some sort of system to notify the switch of the joycon is connected.
- The pin is low otherwise.
- Forcing the pin to ground makes current flow trough it (~5mA), so it does not seem ok to do so.
The joy con resets if it is done. I guess the current comes from the joy con itself, not the switch.
- The switch does boot into RCM mode with the left joy con on the right rail and to ground.
But due to the other problems, I think I am not going to solder it, since I will have issues when connected to the other rail (the proper one).
Does not seeem to be a good solution since it can damage the joy con.

It is unfortunate that the 2 joy cons do not share the pinouts, otherwise it could be possible...

 

[Joaoaug]

Ok, update from my side:

- I tested pin10 of the left joycon, it has 1.8V when connected to the Switch (either Rail).
My guess is that is used as some sort of system to notify the switch of the joycon is connected.
- The pin is low otherwise.
- Forcing the pin to ground makes current flow trough it (~5mA), so it does not seem ok to do so.
The joy con resets if it is done. I guess the current comes from the joy con itself, not the switch.
- The switch does boot into RCM mode with the left joy con on the right rail and to ground.
But due to the other problems, I think I am not going to solder it, since I will have issues when connected to the other rail (the proper one).
Does not seeem to be a good solution since it can damage the joy con.

It is unfortunate that the 2 joy cons do not share the pinouts, otherwise it could be possible...

The right joycon also "resets" it self while you short the pins.

What i have experienced on my right joycon is that while we short those pins it disconect from the "docked" mode and goes to bluetooth mode.
If you make the short permanent the joycon will keep working on bluetooth mode, when connected to the switch it will recharge. i cant say if it will cause any damage, since i did this by mistake and only left the short permanent for half an hour.


But this idea of using the left joycon to enter the rcm mode (using it on the right rail) is a good idea, since the left one has a loads of room to acomodate your mod, and its easier to solder on its board.

 

[guily6669]

No its not... As far as I read on the internet one of the things that will damage the plastic piece that locks in the Switch is using right joy-con on the left, they need to be fitted in the right place.

 

[stewacide]

I think OP means using the left joycon to slide into the right side to activate RCM which should work for RCM. This way the secret home button would only activated when the left joycon is in the right side lane instead of always and detectable.

I don't know the pinout but it could be that shorting those pins on the left joycon can make the joycon useless.

Very clever if it works. Those doing permanent mods right now may have to undo them for the next firmware update, but I doubt they'd be clever enough to check for this (if it works).