Tap Mobile networks. Tap the Network mode SIM you’d like to change. To enable 5G connection, tap 5G/4G/3G/2G (auto connect). To disable 5G connection tap 4G/3G/2G (auto connect), 3G/2G (auto connect) or 3G only .
Read moreHow do I turn off my 5G on my Samsung?
In your mobile device’s settings, look for the option to disable 5G.
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