Firmware Upgrades Firmware Upgrade Process
456 Agilent 8163A/B, 8164A/B & 8166A/B Mainframes, Sixth Edition
Tip: 
Use three fingers and place them near the keys in advance! 
If you were successful, you hear a double beep and the display shows that 
the instrument is in download mode. Otherwise, turn off the power and try 
again. 
8 Click on 'Program' and wait until the download completes. The instrument will 
reboot with the new firmware. 
Agilent 8163B Firmware Upgrade Procedure
You require a PC running MS Windows 95, NT 4.0, or higher, 
and a null-modem serial cable, such as is supplied with your 8163B 
mainframe. 
To upgrade the 8163B firmware:
1 Copy the Firmware\8163B folder from the Support CD-ROM to a folder on your 
PC. This folder contains the update tool ATTools_v1_23.exe and a firmware 
image file named 63B_Vxxx.Z
“xxx” in a filename refers to the firmware version. For example, 63B_V402.Z is 
firmware version 4.02 for the 8163B instrument.
2 Connect your instrument to your PC with the serial cable.
3 Turn on the 8163B and wait until the Agilent screen appears. 
Quickly:
• Press, but do not hold, the Aux hardkey
•Press the Appl hardkey. 
If you were successful, the instrument displays:
“Instrument Maintenance Mode”. 
Otherwise, turn off the power and try again. 
4 At your PC, click on ATTools_v1_23.exe to start the update tool.
Click OK to confirm that you have completed steps 1 to 3.
When the serial connection has been established, which may be after a pause 
of around 30 seconds, the ATTools user interface is displayed.
5 Select the firmware image (file type .Z) in the file selection box, then click the 
Update Firmware button.
Click OK to confirm your choice of firmware upgrade.
6 The firmware upgrade is tracked by a progress bar in the ATTools user interface. 
When the update is complete, a confirmation message is displayed.
Click OK.