Updating your cell phone
You can manually check for and install a carrier settings update using these steps: Information about products not manufactured by Apple, or independent websites not controlled or tested by Apple, is provided without recommendation or endorsement.
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The phone will automatically search for and lock onto the closest cell towers. What you can do, put the phone in airplane mode then put off airplane mode.
This will have the effect of disconnecting from the connected phone towers then reconnecting to the current available ones.
So read this article before upgrading as it can save you a lot of time and trouble further down the road.
A profile update synchronizes your phone with the network by updating its network access info.Continue Reading Verizon phones are equipped to update when the person who is using the phone changes location.The phone may change towers that the signal is drawn from, and the phone may begin to go into a roaming mode when it is too far from the home tower.Over the air updates are important because they synchronize your phone with the network.If you've ever had an issue where your phone isn't successfully connecting to the network even though you're in a good coverage area, there's a strong chance that an over the air update will get your phone working again.