LUMIX Firmware Update Guide for Tether Users (2026)

LUMIX Tether v2.12 added compatibility with the latest DC-S1RM2 (firmware 1.3), DC-S1M2 (firmware 1.2) and DC-S1M2ES (firmware 1.2). If your camera is running the firmware that shipped in the box, you're likely missing one or more updates that LUMIX Tether expects.

How to check your firmware

On any LUMIX: Setup → Others (or System) → Firmware Version. Write the number down before you start, in case a rollback is needed.

The cameras most affected

Camera	Minimum firmware for full Tether v2.12 features
DC-S1RM2	1.3
DC-S1M2 / S1M2ES	1.2
DC-S5M2 / S5M2X	3.0
DC-GH7	1.1
DC-GH6	2.3
DC-S9	1.2
DC-BGH1 / BS1H	latest available

Safe update procedure

Charge the camera battery to 100%. A mid-update brown-out is the only way to brick a LUMIX.
Format a fresh SD card in the camera (not in the computer).
Download the firmware .bin from Panasonic's regional support site. Copy it to the root of the SD card — not into a subfolder.
Insert the card, hold the MENU/SET button while powering on. The firmware updater starts automatically.
Wait. Don't touch anything for the full 3–8 minutes the update takes. The screen will go black at one point — that's normal.
When the camera reboots, format the card again before shooting.

Rollback

Panasonic doesn't officially support downgrading. If a new firmware causes a regression in your specific workflow (it happens — v3.0 on the S5II briefly broke the PDAF panel in third-party apps), Panasonic's support line will roll back the firmware in-house. Don't try unofficial rollback flashes; the bricking risk is real.

What recent updates actually changed for tether users

S5II / S5IIX firmware 3.0 — full Animal Detection AF exposed to LUMIX Tether.
GH7 firmware 1.1 — ProRes RAW frame rate switching from the Tether toolbar.
S1RM2 firmware 1.3 — high-res mode (177 MP) triggerable from Tether for the first time.
S9 firmware 1.2 — initial Tether support (S9 was not in scope at launch).