The Ronin S turns on but other wise doesn't give any sign f life. The motors don't move at all and once connected to the smart phone I'm showm the errors in the attached picture.
Connected unit to Assistant for Ronin, refreshed the firmware and downgraded it but nothing changed.

Hello, can you watch the screen display of the gimbal?

Hello!
I didn't attach a camera. What do you expect to see?

Hi gisele18, sorry to read about the issue. If the issue persists after refreshing the firmware, I may suggest that you send the gimbal back for further diagnosis and service. Please start an online service request at https://repair.dji.com/repair/index and send it back. Thank you.