LUMIX Tether Flash Sync Setup — Profoto, Godox, Elinchrom

This is a focused fix for one specific LUMIX Tether problem: LUMIX Tether Flash Sync Setup. Walk the list top-to-bottom — the first item is the most common cause in support tickets.

Root causes, in order of frequency

1. Sync speed: 1/250 mech, 1/200 with PDAF bodies
2. Trigger on camera hotshoe, not laptop
3. Mechanical shutter only — no e-shutter banding

Confirm the fix

After each step, close LUMIX Tether completely, unplug USB for 5 seconds, replug and relaunch. The connection state is cached — without a full power-cycle of the link you cannot tell which fix worked.

Still stuck?

If none of the above resolved it, swap the cable for a known-good USB 3.2 Gen 2 cable (this fixes ~40% of remaining cases) and reinstall LUMIX Tether v2.12 from the complete LUMIX Tether guide. Related: Windows 11 install guide. macOS install guide.