Forum Discussion
T-Mobile activated a new SIM card but I still can't make a call or send a text because they didn't register my new phone on their network?
I just transferred my SIM card into the new phone T-Mobile sent me but I can't make calls or send text messages. When I tried to make a call it says "Your phone's not registered on a network, so you ...
You need to activate the new Sim card.
T-Mobile does not require a device to be registered for it to work on the newtork. If your SIM is activated. Make sure your device has the correct data and APN settings.
https://www.t-mobile.com/support/devices/not-sold-by-t-mobile/byod-t-mobile-data-and-apn-settings
