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I installed OS X El Capitan beta on my Macbook. Now my Nano-sized Chinese Arduino operating on CH340 chip reboots the laptop when USB is unplugged. While plugged, it works fine, I can upload sketches and send/receive data via Serial.

I've tried reinstalling the CH340 driver and running the following command as per this solution and it didn't help:

sudo nvram boot-args="kext-dev-mode=1 rootless=0"

I appreciate any ideas...

Brian G.
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5 Answers5

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There is a new signed driver for OS-X El Capitan and Yosemite. This is all you want.

http://kig.re/2014/12/31/how-to-use-arduino-nano-mini-pro-with-CH340G-on-mac-osx-yosemite.html

freebil
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The command you ran only disables driver signing verification, which means OSX stops blocking it. If it is crashing it is likely to be either a bug in OSX, or a bug in the driver. My guess is it is a bug in the driver and you'll probably have to wait until they release an updated version that is compatible with El Capitan.

Jake C
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It turns out I didn't have the latest Beta. I now updated to the latest and now my CH340-based Arduino doesn't get detected at all! Pretty much in line with everyone else complaining all over internet.

Brian G.
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Check this video https://www.youtube.com/watch?v=0zuRukW7o0A

  • Reboot and press CMD+R immediately after reboot to enter in Recovery Mode
  • Open Terminal from Recovery mode
  • Run the command csrutil enable --without kext
  • Reboot
  • Install driver
Vitalij
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If you have macOS High Sierra like mine 10.13.4 This is work for me https://github.com/awangga/NFCReader

Rolly Maulana Awangga
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