I have a Samsung S20 and I recently sent a friend text which was initially blue and then minutes later turned green. No delivery notice given. What does a green bubble mean? How can I turn this to a blue bubble text so that the message is delivered? It only happens to this one friend. He is using a Samsung phone.
A green bubble indicates the message is sent from the Samsung Texting App.
A blue bubble means it's converted into a rich text message i.e advanced messaging app / Rcs messaging.
See this similar thread Galaxy-s21-series/text-bubbles.
And some information in https://samsungtechwin.com/what-do-blue-text-messages-mean-samsung/
I personally disable the rich messaging app @Niques
Daily Driver > Samsung Galaxy s²³ Ultra 512Gb in Phantom Black.
The advice I offer is my own and does not represent Samsung’s position.
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