To access RCM, you must hold down volume up, power and the home button. The home button described here is not the home button on the joycon, but instead a hardware home button (think of the physical home button found on smartphones).
What is a RCM device?
RCM - RCD: The difference RCMs (Residual Current Monitors) monitor residual currents in electrical installations, indicate the present value and signal when the response values are exceeded. The devices are designed for signalling and/or switching. RCDs always cause a shutdown.
How do I turn on RCM mode switch?
https://www.youtube.com/watch?v=d042IoBkJjI
How do you use a RCM jig switch?
To activate it, you'll need to ground the 10-pin on the right Joy-Con rail. Then, with the 10-pin grounded, you can hold down the volume up and power buttons. Voila! Your Switch will boot into RCM mode, and you're ready to start modding.
Can I Unpatch my Switch?
There are several methods to mod an unpatched Nintendo Switch depending on your Firmware version. All firmware versions of unpatched Switch consoles can be modded using the Recovery Mode or RCM method. In addition, consoles with firmware version 1.0. 0 can be modded using the software called Nereba, and versions 2.0.
What is RCM mode on Switch?
The switch boots into recovery mode (aka RCM) when the “Home” button and the “Volume Up” button are being pressed while booting the switch. The issue is that it's humanly impossible to hold down the “Home” button because the console is looking for the “Tegra Home button” not the “Joycon Home button”.
Do I need an RCM jig to mod my Switch?
The Nintendo Switch is one of the most unique game consoles ever made. If you want to unlock new, different features on your Switch, you need to mod the firmware. This requires you to access RCM mode, which in turn requires an RCM jig.