Updating the Lumix S1 II, S1R II or S1 IIE firmware is quick — download the BIN file, copy it to a formatted card, and run the update from the menu.
Download the firmware
On Panasonic’s website, find your camera and click to download its firmware. You need the BIN file — accept the user agreement so the download actually starts.
Copy it to the card
Drag the BIN file straight onto a freshly formatted SD card — no need to unzip anything. Then eject the card safely.
Run the update
Put the card in the camera, then go to Menu → the wrench (Others 1) → Firmware Version → Firmware Update → Yes. Give it a moment; it finishes and restarts on its own. Confirm it worked under Firmware Version.
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