Youll need a number transfer PIN for this You may find it easier to activate your T-Mobile SIM card on your computer as ...

This guide shows you how to activate a physical SIM card or eSIM on your Metro by T-Mobile device. A physical SIM has been the traditional form of SIM card used since the first mobile wireless ...

Several users reported spending hours at their local T-Mobile store trying to activate their new SIM without recourse. Since the activation process disables the old SIM, users are stuck without ...