[previous configuration] [up to this 3D shape] [next configuration] ― Configuration code: RRmLvDvLDmRD

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• Start from
• Flatten into a 3x2 rectangle with two stacks of two tiles in the central row
• Position it such that the higher tiles of the two stacks are flaps that can be rotated about their south side
• Actually rotate 90 degrees the eastern flap (in an upright position)
• Rotate 90 degrees a pair of adjacent tiles about their east side (valley fold) into the final shape

Also, this is hinge equivalent to