No need to change your plan .
Read moreHow do I turn my 5G on with T-Mobile?
Switch 2G / 4G / 5G
Read moreHow do I activate my 5G?
Go to Settings > Mobile > Mobile Data Options . If you see this screen, your device has 5G activated. If you can’t see this screen, contact your network provider to confirm that your plan supports 5G.
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