Panasonic Lumix S5 II: Known Problems
Problems documented for the Panasonic Lumix S5 II, each with its source.
Update the firmware first
Some of these problems were fixed or improved in a firmware update. If you see one, install the latest firmware before you pay for a repair.
Lines, color casts or missing corners in images (fixed or improved in firmware)
minorPanasonic has fixed several image defects in firmware. Firmware 2.1 (August 2023) fixed subjects and their outlines picking up color under some shooting conditions, and 3.0 (April 2024) a reddish-purple coloring in Live View Composite mode. Firmware 2.3 (December 2023) fixed horizontal lines in JPEGs shot in SH Burst Shot mode, and 2.4 (January 2024) vertical lines in JPEGs, including ones processed from RAW in the camera, with i.Dynamic Range control on. Firmware 3.6 (December 2025) improved parts of the image corners sometimes going missing when the camera moved with image stabilization on.
Overheating during long video recording
moderatePanasonic says the S5 II heats up faster in hot weather and during long high-definition recording or HDMI output. A temperature icon blinks first, then recording and HDMI output stop until the camera cools down. On a tripod you can set Thermal Management to HIGH to keep recording longer, but the body gets hot. On STANDARD, 6K/30p and 5.9K/30p recording (or their 25p versions) also stops once a clip passes 30 minutes.
Video noise or recording that stops (improved in firmware 3.5 and 3.6)
moderatePanasonic's firmware 3.6 (December 2025) improved recorded video picking up noise depending on the SD card used. Firmware 3.5 (November 2025) improved video recording stopping when the camera's wireless connection to the LUMIX Flow or LUMIX Lab phone app was interrupted.