Please follow these steps to successfully update the firmware of your L24 /L36 scanner.
- Visit http://consumer.usa.canon.com/cusa/support/consumer to download the current firmware from the Canon USA website:
- Type your model name into the search box and select it from the list that appears.
- Click the [GO] button to get to the Drivers & Downloads page for your model.
- From the Drivers & Downloads Page select the Firmware Tab. Select your Operating System and Version from the provided drop-down menu. Click [SELECT] next to the firmware you need and then click [DOWNLOAD].
- Once the zip file has been downloaded, it will need to be extracted onto a USB memory stick that is completely empty.
- With the USB memory stick in the PC, open the "LFW0-**.zip" file.
- Extract the files to the memory stick. As most files need to be in a folder on the memory stick, do NOT drag the contents of the zip file onto the memory stick.

- Check that 3 files and 1 folder is on the USB memory stick.

- Insert the USB memory stick containing the firmware into the USB port of the scanner.

- Using the keypad to navigate, install the firmware.

- Key/button sequence:
From the home page

:
- The installation will take a few minutes to complete.
- Once the installation is complete, it is necessary to reset the scanner back to factory default. To do this, follow this key/button sequence:
The screen should turn black and you should see a large white checkmark.
- Power off the scanner by using the power switch located on the right side of the scanner, and then power it back on.
- Verify that the firwmare has been updated by checking the firmware version number. To do this, follow this key/button sequence:

The latest firmware version is 2.10.
- That's it. Congratulations, you have successfully updated the firmware of your L24 / L36 scanner.
If, for some reason, the firmware was not successfully upgraded, please check the verify the following items and then try to update it again:
- The USB memory stick has been formatted using the FAT32 format.
- There are no other files on the USB memory stick except for the 3 firmware files and folder.