as for indavidual txt tones samsung being samsung have moved it and messed around with it. on the old it was in contacts and you added it when editing Now ! All txt tones must be in the Notification folder on the internal storage, then open contacts press on the contact you want to change you should unless its a contact on your sim get a dropdown press messages this will open up a conversation press the three dots now you will get a Notification option press then you get two options stock or custom pressing custom you can then pick any in the Notification slot there no instruction from samsung on this nor has the press covered this on the others XDA has side loaded S7 apps on the s9 to find they work the message app works spot on so why samsung to get what we want do we need to hac the phone
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