First off regular unlocked phones do not work on Verizon. The phone has to be a Verizon branded device. It just so happens their devices are unlocked and can be used on other carriers.Still trying to figure out how to get an upgrade for my UDP that has no sim card without having to buy an unlocked phone...thanks. Gonna repost.
I have an unlocked iphone 4S that I'm going to trade in for the iphone 6 for UserA
UserA is on basic line, no data, upgrade available
UserB has UDP but smartphone with no sim card, no upgrade available
UserC has TDP but upgrade available
User D has UDP and upgrade available. I'm probably going to buy an unlocked moto x though so don't think I need it.
You are going to want to get a 4G phone on the destination line before you upgrade. You can purchase a used device or maybe borrow a device from a friend.
Once you get a SIM active on the destination line you can order the new phone.
If doing the best buy method order the phone directly. This is only for delivery not in store. When you get the new phone immediately remove the sim and destroy it. Never turn the phone on with that sim. Put the SIM from the line you want the phone on in the phone. You may have to cut it to fit.
Or you can transfer the upgrade from the unlimited to the tiered line. When you get the Phone again discard sim. Put the SIM from the line you want the phone on in the phone.