T-Mobile subscribers are facing issues with SIM activation due to a widespread outage. Users are unable to make calls, send texts, or connect to the internet after activating a new physical or eSIM, ...

The Samsung Vibrant is a phone manufactured for T-Mobile in the U.S. When you purchase this phone, it will have a carrier lock that prevents you from using this phone with a non-T-Mobile cellular ...

We previously reported that a tiny handful of iPhones shipped without SIM cards, while significantly more units have generated the error message "No SIM card ...

You can just buy a bare sim card at the T-Mobile store or online as well, I think it's $8 or something like that (with $5 of airtime credit). You can't technically activate the $30/mo plan in-store ...