Should you be experiencing poor signal strength or no service, it is occasionally necessary to perform a manual roam on your device to de-register it from your network provider and then re-register it again.

To perform a manual network roam on the iPhone, launch the Settings and select Carrier. Unselect the option for Automatic. A list of available networks will be displayed after a few moments. Select any other network that is not your home provider network. After a few moments you will see "No Service" on the display.

Now select your home provider network and change the selection back to Automatic.

---

Author: MCS Ebbe