Reply To: No Serial after downgrade Home › Forums › Synology Alarm Clock › No Serial after downgrade › Reply To: No Serial after downgrade 22.11.2018 at 14:08 #6763 Sergei ParfenovKeymaster Hello. Could you open the settings window, open serial tab. And send me screenshot and log file (to support@nasalarmclock.com) And, could you tell, why you decide to downgrade? What was wrong with last version?