We’ve had a couple of units over the years that have lost their EEPROM settings. The CPU in the 1480A (Cypress FX2LP) will in this case default to the 04B4/8613 VID/PID with the result that the 1480A is not recognized as a 1480A unit. The fix is to reprogram the EEPROM. This can be done with the below procedure:

1)  Download and install Cypress SuiteUSB 3.4.7: http://www.cypress.com/documentation/software-and-drivers/suiteusb-34-usb-development-tools-visual-studio?source=search&cat=software_tools
2)  Download and save the EEPROM image to file: http://www.internationaltestinstruments.com/Downloads/1480A/ITI1480A.iic
3)  Open the Cypress CyConsole application.
4)  Connect the 1480A. If the EEPROM is corrupt, the 1480A should should show up in CyConsole as an “Empty EEPROM” device.
5)  Click Options / EZ-USB Interface menu command.
6)  Click ‘S EEPROM’ in the EZ-USB Interface screen and select the ITI1480A.iic file. This will reprogram the 1480A EEPROM.
7)  Power-cycle the 1480A.

When reconnected to the host, the 1480A should now show up in Device Manager with correct VID/PID and the driver can be installed via the device manager.