When you go to a roaming area, the Mi Fi checks the network identification numbers broadcasted by the nearby towers and references it against the PRL.If the PRL is old, it may direct the Mi Fi to a different roaming partner than VZW is currently using.
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.
The LED turns solid amber when the battery is charging, and blinks amber when the Mi Fi has a problem.
Carrier settings updates let your carrier provider update carrier network and related settings to improve cellular network connectivity and performance.
This information can include your phone number, or be related to the roaming network, the sign in credentials that are needed for you to access the internet, and more.