Impossible to go higher than 1/200s shutter speed

Hi-Sync or HSS mode is detected automatically with compatible units.
However, some cameras need a specific setup to be able to engage Hi-Sync or HSS:
How to setup hi-sync / hss mode.

• Always check if you have the latest firmware installed.
• If you use higher shutter speeds 1/400s and more, you should see a little “HS” symbol in the upper bar of the Transmitter Pro; this indicates that hi-sync is active.
• Try different shutter speeds.
• A decent grading over the image is unavoidable; this is the relation between camera chip size and the flash duration of the unit.
• Try to use lower flash power settings. Hi-Sync requires a longer flash duration.
• On the Transmitter  Pro, you find the ODS settings. Try to play with this setting to shift the exposure window to the best possible sync result.