6 Using the System-Related Functions
114 Keysight U1610/20A User’s Guide
Service Functions
Press   to access the service functions.
Figure 6-5 Service function submenu
Firmware update
Use the following procedure to update the firmware:
1 Download the firmware update file from the Web page: www.keysight.com/
find/U1600_installers
2 Save the firmware file to the root directory on your USB storage device.
3 On the handheld scope, press   >   and press   
repeatedly to select <Host>.
4 Connect your USB storage device to the handheld scope.
From time to time Keysight releases software and firmware updates for the 
U1610/20A. To search for firmware updates, go to the Keysight U1610/20A 
firmware update website at www.keysight.com/find/U1600_installers.