hi. i have an unlocked s10 I haven't gotten the rcs either but I got the app unlit I get the real thing. it is the real thing just through a 3rd party app. once you set it up you can make it you default messaging app. I've been waiting a long time for this so I had to get it although I don't like 3rd parties apps. go to the play store and type rcs messaging app and 💥 there you have it. hope this helps.
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