To unlock a T-Mobile phone, there are several requirements to meet for eligibility, and it can be a more involved process ...
If you're still using a 4G smartphone along with a T-Mobile SIM card, it may be time for you to upgrade to a 5G handset as T-Mobile is phasing out 4G.
It appears that T-Mobile is preparing to retire its 4G LTE service. According to a leaked internal document obtained by Android Authority, the shift will be gradual, but it marks an end to the LTE era ...