I had the same issue (no sim card mgr to activate edim) when I initial purchased the note 20 ultra unlocked version thru samsung ... was promised & waited for the update to enable this feature to no avail so decided to return the phone within the allowed period. I then availed of t-mobile's trade in promo in getting the n20u (to see if their's have the sim card mgr feature per some of the posts I read) ... otherwise will return it too. Hold & behold, it is different as I now have an active dual sim (esim/nano sim) working phone. I requested a temporary unlock with t-mobile to confirm ... and sure is, it works!
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