Firmware update for U1273AX Handheld Digital Multimeter

1. Click Download to download the firmware file.
   
2. Unzip the zip file to a folder.
3. Go to the folder PL23XX Prolific_DriverInstaller_v202, click on the PL23XX-M_LogoDriver_Setup_v202_20200527.exe to install the U1173B IR-USB cable driver.
4. Double click the “Keysight U1273AX Firmware Update Software (Version 4.02) installer file to install the program.

1. Connect the meter to your PC via the U1173B IR-USB connectivity cable and turn on the multimeter.
   
2. Go to Start > All Programs > Keysight Technologies > Keysight U1273AX Firmware Update > Keysight U1273AX Firmware Update Software (Version 4.02).
3. Click “Auto Search COM Port” button to search and detect the unit. The model number, serial number and current firmware version of the meter will be displayed in the “Model Number”, “Serial Number” and “Current Version” field.
4. Make sure the instrument is connected before you start the firmware update. Click “Upload Firmware” to start the firmware update.
5. The meter will reset and recover itself after firmware update.

• Does Not Require a License
  

• Windows 10
  

Notice : Downgrading the U1273AX Firmware
Firmware revision 3.03 and below can be downgraded to any previous posted revision.
Firmware revision 4.02 can only be downgraded to revision 4.0.

Notice : Upgrading the U1273AX Firmware
Firmware revision 3.02 and below can only be upgraded to revision 3.03. Do not attempt to upgrade the firmware to revision 4.0 and above.
Firmware revision 4.0 can be upgraded to revision 4.02.

• U1273AX

1. Click Download to download the firmware file.
   
2. Unzip the zip file to a folder.
3. Go to the folder PL23XX Prolific_DriverInstaller_v204, click on “PL23XX-M_LogoDriver_Setup_v204_20201208.Exe” to install the U1173B IR-USB cable driver.
4. Double click the “Keysight U1273AX Firmware Update Software (Version 3.03) installer file to install the program.

1. Connect the meter to your PC via the U1173B IR-USB connectivity cable and turn on the LCR meter.
   
2. Go to Start > All Programs > Keysight Technologies > Keysight U1273AX Firmware Update > Keysight U1273AX Firmware Update Software (Version 3.03).
3. Click “Auto Search COM Port” button to search and detect the unit. The model number, serial number and current firmware version of the meter will be displayed in the “Model Number”, “Serial Number” and “Current Version” field.
4. Make sure the instrument is connected before you start the firmware update. Click “Upload Firmware” to start the firmware update.
5. The meter will reset and recover itself after firmware update.

• Does Not Require a License
  

• Windows 10
  

Notice : Downgrading the U1273AX Firmware
Firmware revision 3.03 and below can be downgraded to any previous posted revision.
Firmware revision 4.02 can only be downgraded to revision 4.0.

Notice : Upgrading the U1273AX Firmware
Firmware revision 3.02 and below can only be upgraded to revision 3.03. Do not attempt to upgrade the firmware to revision 4.0 and above.
Firmware revision 4.0 can be upgraded to revision 4.02.

• U1273AX

1. Connect the meter to your PC via the U1173B IR-USB connectivity cable and turn on the LCR meter. 
2. Go to Start > All Programs > Keysight Technologies > Keysight U1273AX Firmware Update > Keysight U1273AX Firmware Update Software (Version 4.01).
3. Click “Auto Search COM Port” button to search and detect the unit. The model number, serial number and current firmware version of the meter will be displayed in the “Model Number”, “Serial Number” and “Current Version” field.
4. Make sure the instrument is connected before you start the firmware update. Click “Upload Firmware” to start the firmware update.
5. The meter will reset and recover itself after firmware update.

1. Unzip the zip file to a folder.
2. Go to the folder PL23XX Prolific_DriverInstaller_v204, click on “PL23XX-M_LogoDriver_Setup_v204_20201208.Exe” to install the U1173B IR-USB cable driver.
3. Double click the “Keysight U1273AX Firmware Update Software (Version 4.01) installer file to install the program.

• Does Not Require a License
  

• Windows 10
  
• Windows 7

• Notice : Downgrading the U1273AX Firmware
  Firmware revision 3.02 and below can be downgraded to any previous posted revision.
  Firmware revision 4.0 cannot be downgraded and revisions above that can only be downgraded to revision 4.0.
  

• Notice : Upgrading the U1273AX Firmware
  Firmware revision 3.01 and below can only be upgraded to revision 3.02. Do not attempt to upgrade the firmware to revision 4.0 and above.
  Firmware revision 4.0 can be upgraded to revision 4.01.
  
  

• U1273AX

1. Connect the meter to your PC via the U1173B IR-USB connectivity cable and turn on the LCR meter.
   
2. Go to Start > All Programs > Keysight Technologies > Keysight U1273AX Firmware Update > Keysight U1273AX Firmware Update Software (Version 3.02).
3. Click “Auto Search COM Port” button to search and detect the unit. The model number, serial number and current firmware version of the meter will be displayed in the “Model Number”, “Serial Number” and “Current Version” field.
4. Make sure the instrument is connected before you start the firmware update. Click “Upload Firmware” to start the firmware update.
5. The meter will reset and recover itself after firmware update.

1. Unzip the zip file to a folder.
2. Go to the folder PL23XX Prolific_DriverInstaller_v204, click on “PL23XX-M_LogoDriver_Setup_v204_20201208.Exe” to install the U1173B IR-USB cable driver.
3. Double click the “Keysight U1273AX Firmware Update Software (Version 3.02) installer file to install the program.

• Does Not Require a License
  

• Windows 10
  
• Windows 7

• Notice : Downgrading the U1273AX Firmware
  Firmware revision 3.02 and below can be downgraded to any previous posted revision.
  Firmware revision 4.0 cannot be downgraded and revisions above that can only be downgraded to revision 4.0.

• Notice : Upgrading the U1273AX Firmware
  Firmware revision 3.01 and below can only be upgraded to revision 3.02. Do not attempt to upgrade the firmware to revision 4.0 and above.
  Firmware revision 4.0 can be upgraded to revision 4.01.

• U1273AX

• 1. Connect the multimeter to your PC via the U1173B IR-USB connectivity cable and turn on the multimeter.

• 2. Go to Start>All Programs>Keysight Technologies>Keysight U1273AX Firmware Update>Keysight U1273AX Firmware Update Software (version 3.01).

• 3. Click Auto Search COM Port button to search and detect the unit. The model number, serial number and current firmware version of the multimeter will be displayed in the Model Number, Serial Number and Current Version field.

• 4. Make sure the instrument is in connected status before you start firmware update. Click. Upload Firmware to start firmware update.

• 5. The multimeter will reset and recover itself after the firmware update.

• 6. Reset the multimeter to its Default values through the setup menu (refer to User Guide page 129). This step is mandatory.
  ­

• Installing the software:

• 1. Unzip the zip file to a folder.

• 2. Go to folder PL2303_Prolific_DriverInstaller, click on the ­PL2303_Prolific_DriverInstaller.exe to install the U1173B IR-USB cable driver.

• 3. Double click the Setup.exe file to install the program.

• Uninstalling the software:

• 1. Go to Start>Control Panel, then double click Add or Remove Programs.

• 2. In the Currently installed progrms window, select the program that you want to remove, then click Remove.
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• Does Not Require a License

• Windows 7
• Windows Vista
• Windows XP
• Windows 2000

• System Requirements: Intel Pentium 4, 1 GHz or equivalent, 512 MB RAM, 1 GB HDD free space.

• U1273AX