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Today, Leica has released a firmware update for both the SL2 and SL2-S. Previously, there has been a disparity in the version numbers between the two cameras. This time around, Leica has standardized the version number for both the SL2 and SL2-S. Be aware that there are still two different firmware files, one for each model. The firmware files are camera-specific and are not interchangeable. Along with the numerical harmonization, Leica has improved the functionality of Profoto flash systems with the SL2/SL2-S. As always, we recommend staying up to date on your camera's firmware.

Firmware Files

To download the firmware file, simply click the buttons below. You'll need to drag and drop the downloaded firmware file onto an SD card which was freshly formatted in the SL2 / SL2-S, then insert the card into your camera with a fully charged battery. Navigate to the Camera Information menu to access the firmware update option. Don't try to open the firmware file on your computer – just copy it onto the SD card into the root directory. Full step-by-step instructions are below.


Download Leica SL2 Firmware v5.1


Download Leica SL2-S Firmware v5.1



Installation Instructions

  1. Recharge the battery to 100% and insert the battery into the camera.
  2. Remove all SD cards from the camera.
  3. Prepare a SD card for installation:
    a. It is recommended to format the memory card inside the camera.
    b. Please make sure that the card contains at least 200 MB of free disk space.
    c. Copy the firmware file to the root directory of the SD card.
    d. Insert the SD card into slot 1 of the SL2-camera.
  4. Switch on the camera.
  5. Open the “Camera Information” menu item in the main menu. Under “Camera Firmware Version” you can see the version of the currently installed firmware and you can install the new firmware under “Start Update”.
  6. Confirm the update process if you want to start.
    a. The camera will guide you through the process of updating your camera.
    b. Please confirm to save your current settings to SD card before proceeding with the update.
    c. The camera starts the update process and informs you when finished.
    d. Restart the camera; do not eject the SD card.
    e. After the welcome video you can select the language.
    f. You now can do some settings via the Leica FOTOS App by connecting the camera with the app. If you have already connected the SL2 to the app, delete it from the app and connect the camera again
  7. The update process is completed successfully.
  8. If you want to load your user profiles go to the menu item “User Profile” in the main menu and then “Manage Profiles”. With “Import Profiles” you can restore your profiles to the camera again.

About The Author

Leica Specialist

David Farkas is a self-admitted Leica junkie and an avid photographer since he was seven years old. He also owns and operates leading Leica dealer Leica Store Miami in beautiful Coral Gables, Florida with his wife Juliana. David has years of experience shooting with just about every Leica camera and lens made within the last few decades.

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One Response

  1. PaulB

    Is anyone else having issues with the SL2 after updated firmware to version 5.1? It seems unstable. I copied my profiles to a card and was able to reload them. But now it is not possible to update them. For instance the profile copyright date was set to 2022. Now when I try to change it to 2023 it will not save. I looks like it does, but if you up date another profile and return to the previous profile the original information is still there. Also, trying to change camera default settings will not save either. You man make a change and attempt to save, but change something else in the camera and return to the defaults, and they will have changed back. Again, the copyright information is my best example.

    I am really not pleased at needing to chase my tail to get my settings changes to save and stay put.


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