SIM card on my iPhone has no service

Vishal9667 Said:

"sim card no service"

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Troubleshooting "No Service":

A. "No Service":

Is "No Service" shown on the top-left corner of your screen? If so, go here to fix that: If you See No Service or Searching on your iPhone or iPad - Apple Support

B. Contact your Carrier:

Having issues with Cellular, contact your Carrier, asking them to configure this to the correct settings. They configure all of this in the SIM card.

Vishal ~ Does your iPhone 7 still have its original battery?

And what's the Maximum Capacity % here?...

Settings > Battery > Battery Health

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