Windows does not natively recognize the Nintendo Switch’s RCM or application-mode USB VID/PID (057E:3000). Without a filter driver (libusbK), Awoo Installer cannot open the USB endpoint.

What it is: This feature allows you to install Nintendo Switch games (NSP, NSZ, XCI, XCZ files) directly from your computer to your Switch console using a USB cable. This is the fastest and most reliable method for installing large games without needing to remove the SD card or risk the instability of Wi-Fi transfers.

How it works: Instead of copying files to the SD card manually, you use a client application on your PC (like Awoo Installer, NS-USBloader, or GoldLeaf) to send the game data through the USB-C cable. The Awoo Installer on the Switch receives this data and writes it to the system memory or SD card.

User report:

“Awoo Installer shows ‘no se ha detectado una conexion USB’ even though I used the same cable yesterday.”

Investigation:

Root cause: Windows USB stack crashed due to sleep/resume cycle.
Fix:

On Linux, use lsusb to check detection:

$ lsusb | grep -i nintendo
Bus 003 Device 004: ID 057e:3000 Nintendo Co., Ltd.

If present but not working, reload libusb:

sudo modprobe -r usbhid && sudo modprobe usbhid

On macOS, Awoo Installer often fails due to missing libusb backend. Use NS-USBloader (macOS fork) or bootcamp Windows.

Report ID: AWO-USB-2024-01
Severity: High (Operational Blockage)
Affected Software: Awoo Installer (any version), NS-USBloader, Zadig (Windows), libusbK
Affected Hardware: Nintendo Switch (CFW), Windows PC, USB-A to USB-C cable

Tools needed: Zadig (https://zadig.akeo.ie)

Steps:

Verification: Device Manager now shows libusbK USB Devices → Nintendo Switch.

Corrupted NRO or outdated version (pre-1.4.0) may have broken USB polling. Download latest Awoo Installer from GitHub (v1.4.1 or newer) and replace switch/Awoo-Installer.nro.