TracFones are prepaid phones that offer pay-as-you-go freedom without a contract. If you want to buy a new TracFone, you can replace the SIM (Subscriber Identity Module) card with the SIM card from your previous phone, and this will allow you to transfer all of your contacts, messages, etc. to your new TracFone.
Turn your tracfone off completely. Remove the back panel from your phone, then take out the battery. The SIM card will be under where the battery was.
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Slide the SIM card out of it's place. Take your new SIM card and slide it into place, with the gold side down.
Put your battery back into place, and slide the back panel onto your phone. Finally, turn your tracfone on. Your SIM card will now be installed.
Things You'll Need
Call Tracfone ahead of time and let them know you're switching SIM cards so that they can transfer your minutes to your new phone. SIM cards can only be switched between TracFones. You will not be able to replace a SIM card in a TracFone with a SIM card from another carrier.