Cannot set Speedlite 430EX III-RT flash functions on EOS R5

[Annehelena]

I have a 430EX speeflite III and Canon R5.

In camera, I can not set flash functions from the menu screen as the camera tells me the flash is either off or not compatible. What should I do?

[deebatman316]

Try turning on the speedlite first then turn the camera on.

[fxdrider]

Dredging up an old thread, I know - but this is all my search turned up. I too am now experiencing this problem, with my brand new EOS R7 camera. I tried the suggestion that deebatman316 had, but still no good. Does anyone know what the problem could be? This flash functions perfectly with my EOS 90D.

Thanks!

[deebatman316]

Can you start a separate forum so forum users can better assist you.

[fxdrider]

Yes. Thank you.