03-23-202106:55 PM (Last edited 03-23-202106:56 PM) in
I have an S20 Ultra and it worked for me for months perfectly. As of mid February it says my device isn't compatible suddenly and that it can't register my phone number. I even master reset my phone and it didn't fix it. It's frustrating because it worked so well for months and suddenly it just stops. I know some others that had the exact same experience as I did at the exact same time. I am with T-mobile and have an unlocked S20 Ultra from Samsung. The other person is Verizon with an unlocked S20 Ultra.
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