After switching to a new Windows 10 laptop, my HEX-USB interface (dongle) is not being recognized by VCDS software version 18.2.1, despite meeting all system requirements. The connection test consistently returns the error message “Ross-Tech USB Interface not found! USB Library: 03.02.07 Interface: Not Found!” This issue occurred after setting up the new laptop with only office applications and antivirus software installed, along with some security settings adjustments.
Troubleshooting Steps Taken
The following steps have been taken to resolve the issue:
- Software Reinstallation: VCDS 18.2.1 was uninstalled and reinstalled multiple times (at least 4) as administrator. The VCDS folder was deleted after each uninstallation, and a registry cleaner was used.
- Driver Reinstallation: The USB driver (version 2.10.00.50) was manually uninstalled and reinstalled multiple times (4-5) using “dpinst.exe”. Installation through the Device Manager was also attempted. Each attempt indicated a successful driver installation (status: operational).
- Firewall Deactivation: The firewall was deactivated before installation to rule out any interference.
- USB Port Variation: Different USB ports were tested with no change in the error message.
- Hardware Verification: The interface functions correctly on a Windows Vista laptop and a Windows 10 desktop PC, ruling out a hardware defect.
Device Manager Recognition with Warning
The Device Manager recognizes the “Ross-Tech Direct USB Interface,” but a yellow warning triangle appears on the USB icon. The device properties display error messages (see image below).
Device Manager Error
Possible Causes and Solutions
While the exact cause remains unclear, potential solutions include:
- Driver Compatibility: Although the driver installation appears successful, there might be a compatibility issue with the specific Windows 10 build on the new laptop. Trying older or newer driver versions could resolve this.
- USB Power Management: Windows power saving settings might be interfering with the USB interface. Disabling USB selective suspend settings in the Power Options could help.
- Software Conflicts: A conflict with other software, even with seemingly unrelated applications, could be the root cause. Performing a clean boot of Windows could isolate the issue.
- Hidden Devices: Outdated or hidden instances of the driver might exist in the Device Manager. Showing hidden devices and uninstalling any related greyed-out entries could resolve conflicts.
Conclusion
The “VCDS 18.2 1 Interface Not Found” error can be frustrating, but systematic troubleshooting can often pinpoint the cause. Exploring driver compatibility, power management settings, software conflicts, and hidden devices are crucial steps towards resolving this issue and establishing a successful connection with the VCDS software.
