Product review (5 stars): Great fix for late model (2014) Samsung fridge flapper door hinge
You can save yourself $70 to $90 by buying this spring instead of the door flap assembly.  The Door flap comes off by undoing 2 screws and an electric plug, then pull the two halves apart with a bit of gentle prying with plastic lever tools.  Once apart, the spring slips in in 30 seconds; snap the two halves back together; remount the flapper door; and  you're done.  Note that this spring fits later Samsung fridges where the spring is hidden inside the flapper and applies force to the upper hinge. The earlier fridges with exposed spring are a different spring (easier to find than this one..