Leica has released Firmware Version 4.1 for the Q3, Q3M, and Q343 cameras. This update introduces usability improvements, autofocus refinements, and bug fixes that enhance the overall shooting experience. Leica continues to refine its premium compact full‑frame lineup, ensuring photographers benefit from smoother workflows and improved reliability.
The Leica Q series is known for its blend of minimalist design and professional performance. With firmware v4.1, Leica addresses user feedback and strengthens the system for both stills and video creators.
Firmware v4.1 Download Links
Improvements in Firmware v4.1
- Removed the BP‑SCL4 battery warning message displayed upon power‑up.
- Portrait format images now display in full screen view.
- Added menu option for focus peaking only during manual focusing.
- AF mode now displayed as an additional icon in the status bar.
- Improved AF tracking visualization: frame color reflects detection status, green markers signify focus.
Troubleshooting & Bug Fixes
- Fixed issue where the camera could freeze when switching user profiles with Leica FOTOS Off → On.
- Updated color matrixes in DNG files, improving color rendering in third‑party software.
Why This Update Matters
Firmware v4.1 enhances both usability and reliability. From improved AF tracking feedback to better color rendering in DNG files, Leica ensures the Q3 series remains a trusted tool for professionals and enthusiasts alike. The removal of unnecessary warnings and refined menu options streamline everyday shooting.
How to Install the Firmware Update
- Download the firmware file for your camera model from Leica’s official support page.
- Ensure your battery is fully charged before updating.
- Copy the firmware file to a formatted memory card.
- Insert the card into the camera and navigate to Setup Menu → Firmware Version → Update.
- Follow the on‑screen instructions until the update completes.
Should You Update?
Yes — this update is recommended for all Leica Q3, Q3M, and Q343 users. The refinements improve autofocus usability, streamline menus, and enhance color rendering, making the cameras more reliable for both professional and everyday use.
For more Leica coverage, explore our Leica news section and our guides to premium lenses and systems.




