Here’s the page we think you wanted. See search results instead:


Contact an Expert

33600 Series Firmware

Keysight Technologies is pleased to offer free downloadable firmware updates containing enhanced features and bug fixes for your 33600 Series Waveform Generators. Using the Keysight Firmware Update Utility, updates to the 33600 Series Waveform Generators are available through the instrument’s LAN, GPIB, and USB IO ports, or front panel USB ‘host’ port.

The following improvement has been made in firmware release 2.02:

  • Updated the ACCL version to improve memory leak.
Release Date Version Version Description
2019-05-29 2.02 Updated ACCL version to improve memory leak

How to Download

  • Click the Download button and select the file of interest. Save the file to your computer and note the directory where the file is saved. A firmware update installed over the LAN, GPIB, or USB interface is a file with a .upd extension.
    Unzip the file to access the .upd file. For updates using a front panel USB drive, the utility extracts the required files from the (unzipped) .upd file.

How to Install

  • From the utility directory or Start menu, start the utility (FWUpdate.exe). The utility will prompt you for the location of the .upd file. Follow the additional prompts to complete the installation.
    The update may take several seconds to complete and will reboot the instrument. After the update is complete, exit the utility.
  • It is not necessary to re-calibrate the instrument following a firmware-update; however, the instrument may need to be re-secured if it was unsecured to perform the update.


  • Does Not Require a License

Add-On Software / Utilities


Installs on:


Operating System

  • Windows 7
  • Windows Vista
  • Windows XP
  • Windows 10


  • NOTICE: Downgrading the 336xx Firmware
    Before downgrading to a ‘Previous’ firmware revision, note the firmware revision currently installed (Shift-Help-About).
    Firmware revision A.02.02-2.40 and below can be downgraded to any previous (posted) revision.
    Firmware revision A.02.02-3.15 cannot be downgraded and revisions above that can only be downgraded to A.02.02-3.15.

Supported Instruments

  • 33611A,33612A,33621A,33622A