I transferred my SIM card from a broken but still activated cellphone into my new Teracube. I then went through the initial setup for the phone. When I look under Settings > Network & Internet > Mobile Network, I see the T-Mobile network listed. When I click on T-Mobile under "Mobile Network, " the “Use SIM” toggle is active and it says that my “Preferred network type” is 4G. Everything appears normal. However, when I attempt to make a call, I get the following error message on my screen: “Mobile network is not available.”
I looked at the Teracube forum, a T-mobile was listed as a compatible service provider. When I entered my phone’s IME 1 number in T-mobile’s “check compatibility tool,” it listed the phone as supported. I’ve seen notices saying that T-mobile is planning to discontinue support for 4G LTE next month, but my understanding is that my phone should be able to connect to the network.
Please assist. How can I connect my phone to the T-mobile cellular network?