Sony BDPS6700 4K Upscaling 3D Streaming Blu-Ray Disc Player (2016 US model)/Multi Region

I know others have posted information for other Blu Ray models, but can you list STEP BY STEP how to make this Sony US model Blu Ray Player PLAY Blu Rays
from other regions? Specifically, Region 2 and Region 3?

Has anyone tried this recently/do the steps still work? I heard that Sony is "blocking" attempts to make recent DVD/Blu Ray players multi region?