LEICA has posted Firmware 1.1.9 to solve the issue where the Leica SL3 may sometimes overwrite images when changing the battery.
ERROR CORRECTION
• Sporadic error that resulted in unnoticed overwriting of existing recordings if the camera was not properly turned off beforehand (e.g., during battery replacement in standby mode or after an unexpected software interruption).
• Correction of errors in the firmware.
IMPROVEMENT
• Optimization of the Leica FOTOS connection.