OpenSprinkler › Forums › OpenSprinkler Unified Firmware › Problem updating firmware and Port Forwarding › Reply To: Problem updating firmware and Port Forwarding April 7, 2015 at 3:48 pm #36531 piabandParticipant I’ve tried two different laptops and two different usb cables. Same error every time. Did I receive a broken unit? I have changed the default password. Does that matter?