In cases where the software cannot detect the logic analyzer, we need to determine if the PC itself can detect the Logic device:
Before connecting Logic to the PC, ensure the Saleae Software is not running.
Connect the device to the PC using the provided USB cable.
Check if the operating system (OS) detects the device:
Windows: Open device manager. Expand the section "Universal Serial Bus Controllers" and check for "Saleae Logic X USB Logic Analyzer" where "X" is the specific product version (4, 8, Pro 8, etc.). If "unidentified device" appears, then the OS did not detect it properly. If "Westbridge" appears, then there is a problem with the Saleae driver. Please re-install the driver.
Linux: Run lsusb. Check for any device name containing "Saleae" or a VID of "0x21A9" or "0x0925". Ensure the VID and PID is correct.
OSX: Open "System Report" by opening the Apple menu and selecting "About this Mac," and then select "System Report...". Then select USB under Hardware and check for "Westbridge" in the treeview.
If the PC detects the Logic device properly, open the Saleae software. If the Saleae software reports [Disconnected] at the top, then the hardware is likely OK and this may be a software issue. Proceed to the troubleshooting steps below.