Yes. if it is a tmobile sim card and a tmobile phone then this will definitely work. you will also be able to carry on with the same price plan and number you used before. If you currently have a Tmobile phone on a contract plan that is complete you can also just change your plan to a pre paid plan and keep on using the phone that you have.
UPDATE: As of April 2012, TMobile prepaid phones may only connect to T Mobile towers, limiting your signal (since they also use ATT towers) and giving you varied signal strength depending on your location. So, it's best to unlock any prepaid phone. Ask T Mobile to send you the unlock code or pay someone to unlock your phone.
When you buy a tmobile phone it camoes with a sim card. If you already have a tmobile phone and break it you can buy a pre-paid phone and put your old sim card in it
It depends on what company you bought the phone from and if your phone has a replaceable sim card.
No.
Yes you can. . . .for example you can put a at&t prepaid go phone SIM into an at&t contract phone and it will still be prepaid.
No
Sim Card SwitcharooMost phones that accept a SIM card can be unlocked and used for any service that uses SIM card technology. AT&T and Tmobile phones & SIM cards can be used in this way. However Tracfone and Net10 phones and SIM cards cannot. For AT&T and Tmobile, Prepaid or Contract makes no difference. I use my ATT / Cingular contract service SIM in a T-Mobile Prepaid phone. (unlocked of course). The unlocking bit, depending on the company that makes the phone, can get a little tricky; but if you put some time into searching, you can find the information you need for a small cost or most likely free altogether. I am leaving out info pertaining to technology compatibility as most state and abroad phones are GSM, and you most likely have a GSM SIM card.
no, your # and plan details are on you SIM
If the prepaid SIM is also from T-Mobile, then yes.
No, they are not. When you guys a prepaid phone card, you are essentially just buying minutes. A prepaid SIM card, on the other hand, is a portable memory chip used to hold your phone's personal information including account holder, phone number, addresses book, text messages and other data. SIM cards are easily removable and can be used from one phone to the next.
swap out your sim card into the new phone.
No, you cannot use a Verizon prepaid sim card in a Droid Bionic Phone. You would not be able to activate it because VerizonÃ?s prepaid service does not support LTE.
You can put any SIM card in an unlocked cell phone.