Reinstalling the camera driver manually

Reinstalling the camera driver manually

NOTE: An error message may appear if you attempt to use your IASLab device immediately after launching the software and before Windows has had time to recognize the driver. Before undertaking reinstallation of the driver, you might want to try the following:


  1. Close the IASLab software.
  2. Unplug the IASLab unit from your PC.
  3. Wait 30 seconds and plug the IASLab back in.
  4. Wait an additional 30 seconds to allow Windows to install the device.
  5. Start the IASLab software.


If this does not overcome the problem, continue with the instructions for reinstalling the driver manually.


Note: If you get the error message “[IASLab] Application has stopped working” with a new installation on Windows 7 or higher, the camera driver may be blocked by Windows. In this case, you will need to temporarily disable “Driver Signature Enforcement.”

To disable Driver Signature Enforcement, click here for instructions:
Disabling Driver Signature Enforcement.

To reinstall the camera driver:

  1. Unplug your IASLab device from your PC.
  2. Open the device manager
    • Go to Start Menu | Control panel | System.
    • Click on Device Manager in the left-hand column.

    • The Device Manager window, looking something like this, will open:
  1. Plug your IASLab device into a USB 2.0 port.
  2. Two new devices should appear in the Device Manager window:
    1. A camera under Imaging Devices / Sentech Devices
    2. A USB Host Adapter… under [IASLab] Devices / 1-wire Devices [Cameras]
  3. If either of these devices is missing look for an Unknown Device listed under Other Devices, and do the following:
    1. Right-click on the device and select Update Driver Software.
    2. Select Browse my computer for driver software.
    3. Select Let me pick from a list of device drivers on my computer.
    4. Click on Have disk.
    5. Click on Browse.
      1. Browse to the application folder (Usually C:\Program Files\QEA\[IASLab device]).
      2. Open the Drivers folder and select StUSB.inf.
      3. Click Open.
      4. Click OK.
      5. If prompted, click Continue Anyway.
    6. Repeat these steps for any other unknown devices.
  4. Verify that the two devices described in Step 4 are properly installed and that there are no warnings symbols (“ ! ”) next to their names in the Device Manager.
  5. Restart the IASLab software.


This should solve the problem. If the problem persists, please return to top for further instructions.