I have a Unlocked S10+ on TMobile. Same story in that network issues started about two weeks ago. Despite full LTE bars, I cannot surf the web, dropped phone calls etx, unless I'm on wifi.   Samsung says I can return my phone for a refund, but I have to return my earbuds as well. They will give me a $130 e-cert for the earbuds and say they will have more in stock in two weeks. I mean, what are they going to do with my used ear buds... yuck!   Also, they rejected my trade in saying it would not turn on. I told them to plug it in first, but they said it was still non functional. I just received the trade in back today (S8) and of course, it works perfectly as soon as I plugged it in.   So, I'm told that I must send my phone back + the earbuds, and my Samsung Finance account will be credited with $699. Once that happens, I have to call again and request the $300 credit for the rejected trade in. Expect a full refund in 3-4 weeks. Of course,  I'm expected to buy another $1000 phone replacement if I want another S10+.   Even the Samsung sales guy admitted that their customer service is atrocious!   So in the end, I'll go back to my perfectly functional S8 and see how this all plays out before deciding what to buy next. However, you can be sure I will never order direct from Samsung again. At least at Best Buy, you can walk in and exchange. ... View more