Firmware Update: Logitech G5 Laser Mouse 1.1

Logitech has released a new firmware for its G5 Laser Mouse with 1.1 as the version number. This update improves laser accuracy on various surfaces. This mouse is mainly aimed at gamers and there were a number of complaints from this angle about the accuracy on various mouse pads that indicate that they are suitable for optical mice. The procedure to put the firmware on your mouse is as follows:

Updating your Logitech® G5 Laser Mouse´s firmware to track on more surfaces is easy and quick. To obtain the latest firmware, download the G5Update1.1.exe file. And follow the instructions:

  • Plug your mouse into the USB port on your computer.
  • Open the G5Update1.1.exe file.
  • Follow the on screen instructions:
  • If your mouse needs to be updated with the current firmware (version 1.1), the program will say “Found a G5 with firmware 1.0.”
    • Click on the “Flash” Button
    • The program will then automatically prepare your mouse for the update and execute the update. This process takes less than 30 seconds. During this stage, it is critical that you do NOT unplug your mouse or quit the program
    • Once the update is complete, you will see a message asking you to unplug and re-plug your mouse
    • After you´ve plugged your mouse back in, choose “Exit” to close the update program
  • If your mouse already has the current version 1.1 firmware, the program will say “Found a G5 with Firmware version 1.1” — there is no need to update your mouse. Just click on the Exit button to exit the program.
  • Your updated Logitech® G5 Laser Mouse is now ready for use.

    Note: Some dialogs and warning message may appear during the updating process and should be ignored. They do not represent a failure of the updating process. Disregard these messages and continue to follow the on-screen instructions provided within G5Update1.1.exe.

    Anticipated messages include:

    • “Found New Hardware: A problem occurred during hardware installation. Your new hardware might not work properly.”
    • “USB Device not recognized: One of the USB devices connected to this computer has malfunctioned, and Windows does not recognize it. For assistance in solving this problem, click this message.”

    Note: The 64-bit version of Windows® XP does not support this update. If you are using a 64-bit version of Windows® XP, please contact Logitech´s Customer Support for further guidance.[break]

    Version number 1.1
    Operating systems Windows 9x, Windows 2000, Windows XP
    Website logitech
    File size


    License type Freeware