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macOS Serial Driver Installation ​

On macOS, the firmware updater needs the WCH CH34x serial driver to see LightOne or QuadDrive. You only need to install it once.

Download the driver ​

Download ch34xser_mac.zip and unzip it. You can also get it from WCH's official download page or GitHub.

Copy the app to Applications ​

Open the .dmg file and drag CH34xVCPDriver into the Applications folder.

Drag CH34xVCPDriver into Applications

Allow the permission prompt ​

Driver permission prompt

Open CH34xVCPDriver ​

Open Launchpad and find CH34xVCPDriver.

CH34xVCPDriver in Launchpad

Install the driver ​

In the app, click Install.

Click Install

Allow the driver extension ​

When macOS asks, allow the driver.

Allow the driver extension

Verify the device is detected ​

  1. Connect LightOne or QuadDrive to your Mac with a data-capable USB-C cable, using the device's power port.
  2. Open System Information and go to Hardware → USB.
  3. In the USB device tree, look for a device with Vendor ID 0x1a86. If it's there, the driver is working.

Device with Vendor ID 0x1a86 in System Information

Connect from the browser ​

Open update.raidendigit.com in Chrome or Edge. When the browser asks to connect to a serial port, select the device and click Connect.

Allow the browser to access the serial port

You can now update the firmware and change device settings from your browser.