Exactly. I talked to a Chatr guy today, who also told me I don't have to do anything. Still not sure if I need a different sim, though.I’m curious about this too. My burner is an old iPhone 6 which can handle 4g. I read the chatter on Reddit and people were thinking you’d be fine if your phone supported 4G.
I think this is happening because support for 3G networks is being phased out later this month. I’m going cross my fingers and hope because you lose whatever balance you have with speakout if you switch over to another provider (and the other provider wants to sell you monthly or annual plans).