Hi Bill, The ZTE 990G is device sold through Wallmart with Tracfone. Tracfone has a special lock on their devices and you cannot get it onto the T-Mobile network. This goes beyond the normal handset lock. There is some confusion with this... Read entire answer

If they are not paying their bill T-Mobile will block their subscription not their phone. When you get your own SIM and place it into the phone it will work regardless of their credit. If the phone was stolen...that may be an... Read entire answer

One thing to make sure you do, do not cancel your current service with your number until is has been transferred to your new phone. One you return a number it is near impossible to get it back Cheers Read entire answer

Once you lose your number it is near impossible to get it back. Ideally you would contact your new carrier to port your number to them, however you have to be in possession of the number when you do that. Since Virgin... Read entire answer

The official method to unlock your phone is to contact Fido. If you are an existing customer you can tell them you want to use it outside of Canada and need the device unlocked, they will also provide the unlock code if... Read entire answer

If you want to keep your same number don't cancel your at&t plan until you have started the process with T mobile. And have your number ported over. Otherwise klyou lose that number, it goes back to AT&T. depending on the phone... Read entire answer

I vote for WiFi calling, do you currently have a Broadband service in your home? If so your phone can use the WiFi coverage you have to carry your inbound and outbound calls. Just make sure your phone supports it/or work some... Read entire answer

The people that have answered you are all correct, but the answer is easier if the exact model of Samsung is identified to us :) There are often times multiple ways to do what you are asking. Read entire answer

Hi, congratulations on your acquisition. You need to make sure you have a working SIM card ((active account) and secondly that you are in a location that has T-Mobile signal. Let me know what your answers are and I can help you further along if needed Read entire answer

Hi Karen, that answer depends on what content you have on your CD. If you are familiar with connecting your phone to your computer using USB cable you can just do a drag and drop of files from your CD to your... Read entire answer