Fix “avrdude: stk500_recv(): programmer is not responding” in Mac OS X Mavericks 10.9 — Arduino

If you get this error while trying to upload an sketch with Arduino IDE in Mac OS X Mavericks 10.9:

avrdude: stk500_recv(): programmer is not responding

The first thing you should be sure is that you have selected a correct USB port (Tools -> Port, which should be something like /dev/cu.usbserial). If even that you are unable to upload an sketch try this process.

- Disable the Apple FTDI USB driver:

$ cd /System/Library/Extensions/IOUSBFamily.kext/Contents/PlugIns
$ sudo mv AppleUSBFTDI.kext AppleUSBFTDI.kext.disabled

- Restart Mac OS X.
— Install the original FTDI driver from here: http://www.ftdichip.com/Drivers/VCP.htm

Ref: http://www.enttec.com/support-center/kb/article/108-OS_X_Mavericks_(10.9)_-_IMPORTANT
https://forum.arduino.cc/index.php?topic=198539.0