Should I leave 5G on iPhone 12?

Apple even says it takes into account your data plan: The default settings for 5G on iPhone are optimized for battery life and data usage based on your data plan. … However, inside the cellular settings, you can choose to turn 5G on/off on iPhone 12 manually to optimize for speed or battery life.

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Why does my 5G not work?

Check with your carrier to make sure you have the correct data plan . Also, make sure you are using the SIM card that came with your phone or a 5G compatible SIM provided by your carrier. Older SIM cards may not be compatible with 5G plans. You can check Network mode to make sure that your phone has 5G enabled.

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