Anyone run into a "Download error! Please refresh" when attempting to update firmware and all other available updates?  I hit refresh and it still does it.  Reinstalled the assistant.  Nothing seems to work.  

Me too.  Camera firmware upgrade done, iOS Vision App upgrade done, Assistant 3.8 installed, all look good.  Now only the Main Controller version upgrade keeps getting the same error message, cannot move forward, keep me staying at 3.08.

I've got the same problem. Nothing helps for now.

Looks like the latest update was problem with MUI. Don´t update even if you can.

Same problem here. It appears to have been working yesterday. It's an error at DJI's end.

Ton

I can not update, only error message

confirmed on the phone that their system is down.