ACCES USB Devices should install under a category of the Device Manager display called "Data Acquisition".

If your device is instead showing up as "Unknown Device" or "Unknown USB Device" or similar, it is not associated with our drivers.

Normally, you could right-click on the device in Device Manager, and "Update Driver" to resolve this.

If this process does not succeed it is possible the device is reporting a Vendor/Device ID that we do not expect.  For example, if the onboard EEPROM is corrupted the device will revert to the Cypress FX2LP default of 04B4/8613.  The included ACCESDebug (XxxUSB).inf file is used to associate the default 04B4/8613 with the ACCES drivers.  

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		Please note: there are two provided INF files:  "ACCESDebug (CyUSB).inf" and "ACCESDebug (WinUSB).inf".  It is important to use the correct file.  The (CyUSB) file is used with the current, 9.x driver package.  The (WinUSB) file is used if you are still using the 8.x driver package.  It is recommended you delete the file, or rename the file's extension, of the .inf you do not need to avoid confusing the Windows Add New Hardware Wizard.
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If your device is reporting any other Vendor/Device ID you can edit the ACCESDebug (XxxUSB).inf file to associate our drivers with it.
    To do so, open the .INF file in Notepad and edit the following section...

        %USB_Debug% =USB_Install, USB\VID_04B4&PID_8613
        ; -------------------------------------------------------------------------------------------------------------------------------------------
        ; To Associate the ACCES driver with any USB device, uncomment and change the following line to match the data reported by the device (from Device Manager)
        ;%USB_Debug% =USB_Install, USB\VID_vvvv&PID_dddd
        ; -------------------------------------------------------------------------------------------------------------------------------------------

    replacing the vvvv with the Vendor ID, and the dddd with the Device ID being reported, as shown in Device Manager.

In either case, right-click the device in Device Manager, select Update Driver, and tell the Wizard that you have a file you want to use as your driver (do not let it search online nor automatically), and browse to the location of the appropriate ACCESDebug (XxxUSB).INF file (which you may have modified).

Once this process completes the device should appear in Device Manger, under the category "Data Acquisition", as "USB Debug Device", and either "(CyUSB)" or "(WinUSB)", depending on which .INF you chose.

At this point, you will generally want to run the KeyMaster.exe utility to continue resolving the issue.  Please refer to the instructions included with that utility for additional information.


