A locked phone is a phone that is specific to a particular company. This means that if one were to switch companies that they would have to purchase a new phone rather than be able to use the existing phone. Some of the advantages of buying an unlocked phone is that it exempts one from signing a contract, and one can keep using the same phone even if they choose to switch companies. Another advantage is there are more options to choose from when purchasing an unlocked phone.
Buying new, unlocked phones or unlocking your existing phone is legal in the U.S.
Unlocked smartphones can be bought at phone stores, where, besides selling phone plans they also offer the possibility of buying unlocked smartphones such as iPhone or BlackBerry.
You have two options when it comes to buying an unlocked cell phone. First option is to find one on Craigslist.com, just choose your city and type in the desired phone plus the word unlocked. The other option is Ebay.com, search for desired phone pluse type jailbroken or unlocked.
There is a good guide on what you need to know here www.wisegeek.com/what-are-unlocked-cell-phones.htm
Buying unlocked gsm phone is very legal. You can even figure out how to unlock them yourself.
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what is an unlocked cell phone
The answer is probably yes. The company you're buying the phone from should be able to tell you for certain.
Having an unlocked phone allows you to use the phone with different carriers. Keep in mind some services may not function on an unlocked phone.
It can no longer be purchased from Google. You must buy it used.
advantages of installment buying
Take it into a phone company that offer's the use of unlocked phones and they should activate it for you.