TT685S firmware v2.1
Godox · Released Dec 1, 2017 · First seen by GearPulse Jul 5, 2026
What's in this update
1.To add the option of wireless ID（C.Fn-ID）2.To add the ON/OFF option of SLAVE mode indicator（C.Fn-Sv LED）3.To add the function that the flash can be triggered by pressing the TEST button when being attached to camera.
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