shahring my experience 
After update complete :
The “Hard Restart” (Crucial Step) 
The UPS needs a full power cycle to apply the new settings:
-
Shut down your NAS completely.
-
Unplug the UPS power cable from the source outlet.
-
Press and hold the UPS power button for 15 seconds (you will hear a beep) until it is totally powered off. NO led on
-
Wait 10 seconds to let it reset.
Power Back Up
-
Plug the UPS back into the wall.
-
Turn the UPS on, then turn your NAS on.
-
version will be updated as in picture
