How to Verify Cellular and Data Connectivity After Switching Android Phones

Step by step

1. 1 min

   Confirm SIM card and network registration

   Ensure your physical SIM is seated correctly or your eSIM profile is active. Open Settings > Network & internet > SIMs and verify your carrier name appears with signal bars in the status bar.

   Note: If the signal icon shows an exclamation mark, your SIM is not correctly provisioned.
2. 1 min

   Place an outbound test call

   Open the Phone app and dial a known working number or your carrier's customer service line. Confirm you can hear audio clearly through the earpiece and that the other party can hear you.

3. 1 min

   Perform an inbound call test

   Use a secondary device to call your new phone number. Verify that the device rings, the display shows the incoming call notification, and the proximity sensor functions correctly by muting the screen during the call.

4. 1 min

   Validate VoLTE and data connectivity

   Disable Wi-Fi in the Quick Settings panel to force cellular data usage. Attempt to load a webpage in your browser; if successful, your data plan is active and VoLTE is likely functioning for high-definition calls.

   Note: Verify the status icon shows 5G or LTE during your browsing test.
5. 1 min

   Reset network settings if connectivity fails

   If calls fail, navigate to Settings > System > Reset options > Reset Wi-Fi, mobile & Bluetooth. Select Reset settings and confirm; this clears cached cellular data and forces the device to re-register with your carrier towers.

   Note: This will remove saved Wi-Fi networks and paired Bluetooth devices.