在MacOS 10.14 Mojave下无法使用CH34x USB转串口是为什么？

我先下载了1.5的驱动安装后，无法识别CH34x usb设备。后来看帖子https://github.com/adrianmihalko/ch340g-ch34g-ch34x-mac-os-x-driver，说在：Do not install if you have the current macOS Mojave 10.14 or later. 所以按照下面步骤我卸载了驱动：

• Unload the old drivers if running:
  

• sudo kextunload /Library/Extensions/usbserial.kext
• sudo kextunload /System/Library/Extensions/usb.kext
  

Remove the old driver by issuing one of the following commands (depending on your installation):

• sudo rm -rf /System/Library/Extensions/usb.kext
• sudo rm -rf /Library/Extensions/usbserial.kext
  

然后重启PC后，macOS Mojave自带的Apple driver还是无法识别CH34x设备，在/dev下没有cu.wchusbserial1410 设备。请问这个情况如何解决？谢谢！