Your operating system account lacks group access privileges to read and write to the serial hardware communication lines.
Modern operating systems often handle FTDI drivers automatically, but manual installation is frequently required for custom hardware or older systems.
Choose and select the extracted folder. macOS (OS X) ft231x usb uart driver link
After installing the driver via the official , confirm functionality:
To verify:
FTDI VCP Drivers Download Page
The Virtual COM Port (VCP) driver emulates a serial port. FTDI also offers a , which provides a direct DLL API for faster, lower-level control. Your operating system account lacks group access privileges
During installation, macOS may block the driver extension. If blocked, open System Settings > Privacy & Security .
This hardware-level error indicates that Windows cannot communicate properly with the chip. lower-level control. During installation