I have upgraded my Mac to the mentioned OS version. After that suddenly uploading via DFU to my Photons no longer works. Basically as soon as the Photon switches to DFU mode it will not be listed any longer under /dev/cu.usbmodem*. Anyone else seen that? Any idea for fixing?
Also, a Photon or Electron in DFU mode doesn’t normally show up with a /dev/cu.usbmodem* entry. It only shows up in normal operating mode or listening mode as a cu device.