How do I fix a new iPhone that cannot make calls?
Answer
Restart the iPhone, toggle Airplane Mode, then check Settings > Cellular to confirm the line is on. If No Service continues, reseat the SIM or redownload the eSIM and contact the carrier to finish provisioning.
Before you start: stop right away if…
- Do not install cellular profiles from unofficial websites.
Follow these steps
Restart and toggle Airplane Mode
Restart the iPhone. Then turn Airplane Mode on for 10 seconds and off again. Wait for a carrier name to appear.
You should see: Cellular service appears, or No Service remains.
Check Cellular settings
Open Settings > Cellular and confirm Cellular Data and the phone line are enabled. Select the correct SIM or eSIM if more than one is listed.
You should see: The intended line is on and selected.
Reseat SIM or refresh eSIM
For a physical SIM, power off and reseat it. For eSIM, use the carrier’s official redownload or QR flow from Settings > Cellular.
You should see: The line provisions and signal returns.
Ask the carrier to finish activation
If calling still fails, contact the carrier and ask them to refresh the new device IMEI/SIM provisioning. Test a call after they confirm activation.
You should see: Outbound calls succeed.
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Extra tips
What to look for: A newly set up iPhone that cannot dial out and may show No Service.
Before you change anything: Have the carrier account PIN ready. Stay on Wi-Fi for eSIM redownload if needed. Avoid unofficial cellular configuration profiles.