Mobile phones use a card called a SIM card. This stands for Subscriber Information Module, and each one contains a unique serial number. The SIM card identifies the person who is using the phone. The mobile phone companies lock the phones so that a SIM card from another company can not be used. When your phone is leased from the company, this locking is fine, as you are supposed to use the phone's network anyway, but when you are the owner of the phone, it might be a problem. It is not easy to sell a locked phone, and if you do sell it, you can expect a much lower price. The buyer will have to unlock it.



While most phones can be easily unlocked from your own home simply by downloading the proper software and the right code, Samsung unlocking is a bit more complicated and must be done in personal by qualified techs. There are quite a number of websites that sell the codes to unlock the phones. Some of these companies will allow you to mail your phone to them, and they will do the Samsung unlock for you, and then they will be returned. During this operation, the SIM card is not needed and you may borrow another phone, and use card in it.



The unlocking company will normally be able to unlock Samsung phone, and return it by several choices of transport. The return package can be by regular mail or by express mail. The total cost for this service usually runs in the neighborhood of twenty five dollars. The work done is guaranteed 100% by the service provider.



There is a great deal of competition between the networks providing cell phone service. In many cases this competition is good, and it benefits the customer. It has led to the amazing number of features that have taken cell phones past being merely phones to being cameras, internet terminals, and music centers. The concept of locked phones is not one of these good benefits, but a way to restrict the customer, and force him to use one service. Although Samsung makes good phones, they have gone the furthest to lock those phones. They can be unlocked, however, and if you own the phone, you certainly will want to do it. The Samsung may be harder than most to unlock, but it is not impossible.