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If you want to learn more please read this article on saving contacts. These days your SIM really only holds your account information. Just put the SIM card in the new phone and that’s all you need. You need to call carrier B to move your old number to the SIM card that carrier B gave you. Simply put the SIM card into the new phone and you are ready to go! the amount that your cell phone operator subsidized to have you sign a contract with early termination fees.Īs we have had a lot of comments and questions, we have updated this post with a few examples. These phones were locked to protect operator subsidies, i.e. In contrast, only SIM cards from a specific cell phone company will work in its locked phones. You can also use different phone service plans in a single unlocked phone, say one for work and one for personal, by switching the SIMs. With unlocked phones, you can always switch your phone service between different phones as easily as popping out the SIM card and moving it. These phones have to be either provided by your cell phone provider or they have to be unlocked phones. Security features include authentication and. Such data includes user identity, location and phone number, network authorization data, personal security keys, contact lists and stored text messages.
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SIM cards make it easy for you to have multiple phone numbers so you can switch between them whenever you like. SIM card: A SIM card, also known as a subscriber identity module, is a smart card that stores data for GSM cellular telephone subscribers. When you move your SIM to another phone, you keep the same cell phone service. Can I move my cell phone service just by moving my SIM to a new phone?