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U7227A/C/F and U7228A/C/F USB Preamplifier Firmware update

Release Date Version Version Description
2017-07-01 D.6 U7227A/C/F and U7228A/C/F firmware version D.6

How to Download

  • Click the download button and download the file (zip file) from Keysight Technologies web site to your computer's hard drive.

How to Install

  • NOTE: To upgrade U7227A/C/F and U7228A/C/F firmware, it requires .net framework 3.5.
  • 1. Connect DUT to the PC.
    2. Open the zip file (
    3. Install the “WinUSB Driver” to the PC. Under “My Computer”, click “Properties” follow by “Device Manager”. Right click on the device listed and select “Update Driver Software”. Browse for driver software and proceed for installation.
    4. Save “mcHID.dll” in “C:\Windows\system” folder.
    5. Click on the “HID_Bootloader_PIC18_Integrated.exe” file to do the upgrade. The firmware upgrade window will appear.
    6. Select the DUT for upgrade from the list and click on the “Upgrade” button.
    7. Click on “Open Hex File” to select the “U722xx_D.6_Upgrade.hex” location.
    8. Click on “Program/Verify”. Once completed, “Program/Verify Passed” will at the message box.
    9. Click on “Reset Device”. The DUT is now ready with new firmware installed



  • Does Not Require a License

Installs on:


Operating System

  • Windows 7
  • Windows XP


  • Information Not Available

Supported Instruments

  • U7227A,U7227C,U7227F,U7228A,U7228C,U7228F