There are two types of Verizon phones and each has a different way of updating roaming towers.If your phone is 3G and does not have a SIM card, you can easily update your towers by dialing *228 and choosing option 2.Just wondering if this is a separate upgrade or part of NV.Tks on sprints website they have a page where u can put your zip code in and they will tell you the upgrades ie 1 voice upgrade or 1 data speed upgrade etc.Fortunately, it's possible to force your phone to clear the tower locations stored in memory and query the nearest towers for a signal update. The power cycling will usually cause the location memory of your phone to reset, and powering on again will force it to query the nearest towers.Press the "End" or "Power" button on your phone, and hold it down for three to five seconds, until the screen goes dark. Verizon users can dial " *228 " and select "2" when prompted to update to local towers.There is also a command within the phones that will allow you to update your software version.This will also cause your phone to update it's towers.

Some signs that your phone needs to be updated are a larger number of dropped calls and a drain on your battery. Your phone will automatically update to the nearest towers.

Your cell phone locks on to the signals of the nearest cell phone towers, and stores them in memory as a way to reduce power consumption.

Occasionally, the tower locations stored in your phone's memory are used instead of the actual nearest tower, causing your signal quality to degrade.

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