I wish people wouldn't answer problems/questions if they "think" they know but they don't have accurate information. I have a Samsung Galaxy S8+ phone on Sprint/T-Mobile. At least 2 of my contacts have Android phones but not Samsung or Sprint. They have blue dots next to their contact icon. Other contacts have the Sprint for different phones (iPhones for instance) with no Blue Dot. Also, please, if you are going to answer a question using an acronym (RCS) please try to define what that is. We should not have to Google an acronym to figure out what's being talked about. Just my opinion.
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