Are Sprint Phones Compatible on T-Mobile? Sprint uses a CDMA network, whereas T-Mobile uses GSM. Historically, that meant Sprint phones don’t play well on other wireless carriers, like AT&T and T-Mobile (with several exceptions) .
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The good news is most Sprint LTE and 5G devices are compatible with the T-Mobile LTE or 5G network and will continue to operate on T-Mobile’s LTE and 5G networks. Customers only need to take a few easy steps: Replace the Sprint SIM card with a T-Mobile SIM card.
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