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Knowledge about unlocked cell phones?
An unlocked cell phone is a cellular telephone handset that can be used with more than one service provider, making it easy
for a user to switch from one cellular network to another.
The sequence of steps a user must perform in order to unlock a cell phone depends on the original communications service
provider and on the manufacturer of the phone set. Some cell phone sets can be unlocked by inputting codes to modify the
software in the unit. Other sets require the purchase of special cables or modification of the internal hardware as well as
reprogramming of the phone's data settings. In the wake of the U.S. Copyright Office's decision in November 2006 to allow
cell-phone unlocking for at least three years thereafter, numerous companies began to offer unlocking services for a fee.
Proponents of cell-phone unlocking argue that consumers should be free to change their network when a subscription contract
expires without having to discard hardware they purchased outright. Some cell-phone service providers, unhappy with the
Copyright Office's decision, are resisting the practice by making their cell-phone sets difficult or impossible to unlock.
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Some cell phones are designed to use a Subscriber Identification Module (SIM) card, or microchip that stores subscriber data.
The SIM card is issued by a carrier and provides cell service by activating any phone into which it is inserted. A locked
phone, however, will only recognize a SIM card from a particular carrier. If the cell phone is unlocked, it will recognize a
SIM card from any carrier. The "lock" is a software setting that keeps the cell phone "loyal" to one carrier.
In areas like the United States where carriers offer free or deeply discounted phones with cell plans, the phones are
commonly locked so that they will not work with other carriers. Carriers claim this is necessary to subsidize the cost of the
phones. After a period of time, a carrier might agree to unlock the phone upon request, perhaps charging a fee. However, due
to proprietary settings sometimes installed in locked handsets, the phones don't always function correctly with other
carriers, even once unlocked.
From the viewpoint of the consumer, the practice of carriers locking phones and using proprietary settings defeats many of
the benefits of SIM handsets. Complaints led to a class action suit filed in California in June 2004 by American watchdog
group Foundation for Taxpayer and Consumer Rights (FTCR). Ideally phones should be left unlocked, or at least unlocked after
the initial contract expires.
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One way to get an unlocked phone without proprietary settings is to buy it new from a third party vendor in its original,
unlocked state. The downside is that the price is commonly close to full retail. Some consumers might find it tough to dish
out big bucks for a phone that they can get for free with a plan. The advantage is that the third party unlocked phone should
work equally well with any carrier that uses SIM cards.
Unlocked cell phones are in such demand that third party services will unlock your cell phone for a fee. This doesn't
guarantee the phone will always work correctly, as proprietary settings might remain. There are also hacking instructions
online to unlock many models of phones, but a phone that is unlocked improperly can be rendered inoperable.
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Carriers operating on the GSM network use SIM cards. In the United Sates, this includes Cingular Wireless, now one with AT&T
Wireless, and T-Mobile. Carriers that use the competing CDMA network do not yet use card-enabled phones. These carriers
include Sprint PCS, Verizon and Virgin Mobile. The CDMA equivalent of the SIM card — the R-UIM — will be used by these
carriers in the future. R-UIM cards are already in use in some parts of Asia.
Some problems you may meet like this?
I am *totally* new at this so bear w/me, folks. First, if I buy an unlocked cell I should (or definitely will) be able to use
it w/my SIM card in it? Or is this just a crap shoot? I'm a T*Mobile user and feel that I am in trouble since my cell died on
me and my insurance was for only one year from when I purchased it. I can't afford to buy a new phone -- gotta wait until
November (which is what the T*Mobile reps told me) whereby I can get a decent deal on a cell OR wait until it's time to renew
my contract (which is in January) and get a better deal on a new cell. I need something now. Help!
Unlocked cell phones wholesale deals from China manufacturer!
