ATT's new network changes
I'd like to know more info or, at the very least, links as to why certain dual SIM Samsung phones are no longer compatible.
More specifically, I'm using my Samsung Galaxy Note 9 Duos SM-N960F/DS that is on ATT thru my job. Every time I insert and remove the existing SIM in the tray, I'm greeted with this message:
"AT&T FREE MSG: We're always looking for ways to connect you to what you love faster than ever before. We're sorry, but the phone you recently activated is no longer supported. Upgrade your device: contact your AT&T account manager, visit att.com/premier, or business.att.com"
Any links or additional info on this matter will be most helpful.
Thanks in advance for all your help.😊