The instructions below have seemed to work for anyone here at Alorium Technology that was observing the FTDI issues. Download the Arduino Software (IDE) Get the latest version from the download page. Press and hold the Option key on your keyboard while choosing Apple menu > System Information from the menu bar. Then find the serial number in the information shown. We have found uninstalling the third-party drivers to be a solution. This document explains how to install the Arduino Software (IDE) on macOS machines. From the Apple menu in the corner of your screen, choose About This Mac. This potentially leads to the mysterious port disappearance issue. So, if you have followed an upgrade path from an older version of the OS without native FTDI support to a new version that has it, there can be contention between the native and third-party drivers. Sign in with your Apple ID on your iPhone or iPad, and go to Settings > your name. Somewhere around the release of macOS 10.12 Sierra (and maybe earlier), native support for FTDI drivers was included. Earlier versions of Mac OS X did not support FTDI drivers, so users would have to install third-party FTDI drivers. After scanning for hardware changes, you can see the Apple Mobile Device USB driver is installed automatically for Windows 10. If the devide is connected directly to Windows VM, it shows in Device manager and is assigned a new port number. The exact cause of this problem is not certain, but it seems to be related to Apple’s support, or lack thereof, for FTDI drivers in the operating system. Then go back to Device Manager and then under Action, click Scan for hardware changes. Connecting the device to MacOS and enbling the serial port in Parallels results in the VM rendering a COM1 poiting at whatever serial port was configured prior to booting into Windows. Since we’ve seen this issue pop up internally and with many customers, we decided to share what solution has been working for us so far. Rebooting the system can temporarily restore the port, but the problem eventually comes back. The symptoms we have observed generally include the spontaneous loss of the USB serial port connection to the board or loss of the port after disconnecting and then reconnecting the board from the USB programming cable. Since our boards use an FTDI chip for USB-to-serial communication, we have witnessed some of these issues when working with our boards using Mac and macOS. Ongoing macOS FTDI driver issues plague many users connecting the Arduino IDE to boards that use an FTDI chip. The name of the certificate should be of the format: Developer ID Installer: Apple account name (serial number). install but after inputting serial number came. How to Fix FTDI Driver Issue on Mac and macOS Error 16 + No Serial Numbers + Not registered with Adobe - HOWEVER programs still on Apple Mac.
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