+---------------------+ | Android App UI | (Select payload, trigger injection) +---------------------+ | USB Permission | (Request host mode access) +---------------------+ | Payload Loader | (Read .bin file into byte array) +---------------------+ | USB Communication | (Control transfer + bulk write) +---------------------+ | Linux Kernel USB | (OTG driver, gadget config) +---------------------+ | Nintendo Switch | (RCM mode, Tegra X1) +---------------------+
If you own a compatible Android phone and an unpatched Nintendo Switch, buying a $3 RCM jig is the only investment required. You don't need an expensive dongle, and you don't need to lug a laptop to a coffee shop. switch payload injector android
RCM is an official fail-safe mechanism on the Switch. It is activated by bridging Pin 9 (Volume Up) and Pin 10 (Ground) on the right Joy-Con rail while pressing the Power button. In this state, the Switch’s processor (Tegra X1) waits for a boot image via USB. +---------------------+ | Android App UI | (Select payload,
if (!manager.hasPermission(switchDevice)) PendingIntent pi = PendingIntent.getBroadcast(this, 0, new Intent(ACTION_USB_PERMISSION), 0); manager.requestPermission(switchDevice, pi); else UsbDeviceConnection connection = manager.openDevice(switchDevice); UsbInterface rcmInterface = switchDevice.getInterface(0); connection.claimInterface(rcmInterface, true); It is activated by bridging Pin 9 (Volume