Latest update- doesn't work

I’m not able to update my FP3.
I can go to “system- download update”, but when I press the botton, nothing happens.
I have it plugged in and have been waiting for 20 Minutes, several times and also switched off the phone and tried it again.
Does anyone know that? And what can I do?

Just wait. Android uses a staged update mechanism, the priority for your device is set by a random number.

Or did you already get a notification that an update is available?

Best wishes,