-->
-->
-->
-->
-->
-->
-->
-->
-->
This error can sometimes be caused by your computer's USB controllers. Here is a common fix:
The most reliable and secure source for these drivers is the official FTDI website. You should avoid third-party driver repositories to prevent malware risks or outdated software. FTDI Chip Drivers .
: Sometimes FTDI devices require two driver passes—one for the "USB Serial Converter" and a second for the "USB Serial Port". ft231x usb uart driver link
Searching the web for an exposes you to significant cybersecurity risks. Stick to the official source:
If this sounds familiar, the solution is a quick driver installation. This error can sometimes be caused by your
Switch from a USB 3.0 port to a USB 2.0 port. Avoid using unpowered USB hubs. Swap out the USB cable for one that explicitly supports high-speed data transfer. Issue 2: Yellow Exclamation Mark in Device Manager Cause: The driver is missing or corrupted.
3. The Hardware is Not Recognized at All (No Sound or Pop-up) FTDI Chip Drivers
This article provides the direct , installation instructions for Windows, macOS, and Linux, and troubleshooting tips for 2026. 1. Direct FT231X USB UART Driver Links
Download the from the link in the table above. Extract the .zip folder to your desktop.
page. These drivers are royalty-free and typically eliminate the need for custom USB driver development. Virtual COM Port (VCP) Drivers
