what is gsm unlocked phones
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What is an Unlocked GSM Phone? A cellular phone that uses the Global System for Mobile (GSM) network and can access multiple cellular phone service provider networks is called an unlocked GSM phone. A locked cell phone is sold by the cell phone service provider and cannot be used with any other provider.
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- Unlocked GSM phone users may travel around the world and pay only local usage fees. An unlocked GSM phone. A SIM card for an unlocked GSM phone. New SIM cards can be placed into an unlocked GSM phone. An unlocked GSM phone can be used with any other carrier who also uses a GSM network.
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- From Wikipedia, the free encyclopedia. A SIM lock, simlock, network lock or (master) subsidy lock is a technical restriction built into GSM and CDMA mobile phones by mobile phone manufacturers for use by services providers to restrict the use of these phones to specific countries and/or networks.
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Confused about locked vs. unlocked phones? Ask Maggie explains An unlocked phone either doesn't have the lock software on it or someone was able to get a code that unlocks the software. Once a device is unlocked, you can pop out the SIM card and put in a different SIM from another GSM operator and get service.ut unlocked GSM phones from AT&T and T-Mobile will work on each other's networks, which makes the use of GSM much more flexible than CDMA. In summary, phone locks are not really relevant when you're talking about 2G and 3G devices that operate on CDMA or EV-DO networks.
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- A SIM card for an unlocked GSM phone. New SIM cards can be placed into an unlocked GSM phone. An unlocked GSM phone can be used with any other carrier who also uses a GSM network.The ability to unlock a cell phone depends on the type of phone and the technology associated with it.View slideshow of images above. Watch the Did-You-Know slideshow. SIM card for an unlocked GSM phone. New SIM cards can be placed into an unlocked GSM phone. An unlocked GSM phone can be used with any other carrier who also uses a GSM network.
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What is an Unlocked GSM Phone? Unlocked GSM phones can be purchased from stores that are not affiliated with a specific cellular phone service provider. These phones typically cost more than the locked phones, as the cost usually is discounted by the service provider.
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Differences between unlocked GSM and CDMA phones Because a GSM handset uses a SIM card (where the networks information is kept) the phones also have a universally recognised SIM lock placed on them. This lock dictates which SIM cards the phone is allowed to work with. The process of unlocking a GSM phone is then made pretty simple. The SIM lock that each GSM device has is assigned an unlock code when the phone is created. This code is what we or any other unlocking company supply when an order is placed. The phone recognises this code and removes the SIM lock, allowing the phone to accept any compatible SIM card when it is inserted.
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Locked Phone (Unlocked Phone) Although there are several types of locks that can apply to a phone, the most talked-about type is a carrier lock, also known as a SIM lock or subsidy lock. Many phones sold by carriers come locked to that carrier. A locked phone can only be used with that carrier; it cannot be used with another carrier's service.
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What Is an Unlocked Cell Phone? An unlocked cell phone is a mobile phone that can be readily used on any GSM network of the owner's choosing without having to commit to a carrier plan of any kind. This means that the owner can slide in a SIM card from any wireless carrier in his or her region to start making calls, surfing the Internet, and benefiting from any of the services available on that carrier's network for its customers.
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Unlocked All GSM Carriers At ReplaceYourCell, we carry a large selection of unlocked new & refurbished phones that will work with nearly all GSM Carriers. Unlocked mobile phones will work with most GSM carriers abroad as well. 35 Item(s)
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What Is an Unlocked Cell Phone? Benefits of an Unlocked Cell Phone One of the main benefits of using an unlocked cell phone is the absolute freedom it gives to owners. Apart from the fact that it doesn't come with an expensive one or two year contract, you also get the chance to choose when and which carrier to use.
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AmazonAll GoSearchEN Hello.Account & Lists Orders CartDepartments Your Amazon.com Today's DealsGift Cards Registry Sell Help It's important to understand that only some kinds of phones can be unlocked, namely phones that are compatible with the GSM (Global System for Mobile Communications) network. GSM phones contain a small, removable card, known as a SIM (Subscriber Identity Module), that is programmed with your subscription information and phonebook. A SIM card can be removed and placed in other GSM phones, allowing you to quickly and easily change handsets while retaining your contacts and carrier service.
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Locked / Unlocked 'Unlocking' a phone means that it can be used with any SIM card/carrier-and in any country. But the unlocked handset may still display the original network's branding and may not support features of the new carrier. Most phones can be unbranded by uploading a different version of the phone's internal software or 'firmware'.
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- The Nokia Lumia 822, the Verizon-exclusive version of the mid-range Nokia Lumia Windows Phone 8 model can be used as an unlocked GSM smartphone. There is a SIM card slot that will work with just about any card.
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- An unlocked GSM phone. A SIM card for an unlocked GSM phone. New SIM cards can be placed into an unlocked GSM phone. An unlocked GSM phone can be used with any other carrier who also uses a GSM network. The ability to unlock a cell phone depends on the type of phone and the technology associated with it.View slideshow of images above. Watch the Did-You-Know slideshow. SIM card for an unlocked GSM phone. New SIM cards can be placed into an unlocked GSM phone. An unlocked GSM phone can be used with any other carrier who also uses a GSM network.
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- An unlocked GSM phone. A SIM card for an unlocked GSM phone. New SIM cards can be placed into an unlocked GSM phone. An unlocked GSM phone can be used with any other carrier who also uses a GSM network. The ability to unlock a cell phone depends on the type of phone and the technology associated with it.
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- An unlocked phone is required to use a GSM SIM card. Phones on a GSM network typically use a SIM card. Most GSM antenna towers today include receivers and transmitters for both voice and data. Communications satellites may be part of a GSM network.
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Locked / Unlocked Locked / Unlocked. A 'locked' mobile phone is one that has been restricted by software so that it can only be used with a single network or carrier. Locked mobile phones are usually GSM phones that use a SIM card - hence the use of the term 'SIM lock'. The reason for the lock is because mobile phones are usually heavily subsidised and carriers want to discourage people switching networks or shipping phones to other countries.
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Locked / Unlocked Locked / Unlocked. iPhone 4 on O2, Orange and Vodafone. Definition: A 'locked' mobile phone is one that has been restricted by software so that it can only be used with a single network or carrier. Locked mobile phones are usually GSM phones that use a SIM card - hence the use of the term 'SIM lock'.
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Locked vs. Unlocked Cell Phones Get your cell phone unlocked. If you have a quad-band GSM phone, the best option for using your cell phone in Ireland is to get it unlocked and to purchase an Irish SIM card. To unlock your cell phone you will need a unique code from your provider.
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Unlocked Cell Phones: What Does It Mean To Be Unlocked? GSM Carriers (Cingular and T Mobile are the biggest two). When a GSM phone is unlocked, it will work with any active sim card. So you can put an active T Mobile card or and active Cingular card and the phone will make a call.his lock is called by several names including Sub Lock or SPC Lock or Sim Lock. Now that you know why the cell phones are locked, I will discuss how to tell if your phone is locked or unlocked. First, you must determine if your phone is a GSM phone or a CDMA phone.
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SIM lock SIM lock. (Redirected from Unlocked gsm phone) A SIM lock, simlock, network lock or (master) subsidy lock is a technical restriction built into GSM and CDMA mobile phones by mobile phone manufacturers for use by services providers to restrict the use of these phones to specific countries and/or networks.
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GSM GSM is a standard developed by the European Telecommunications Standards Institute to describe the protocols for second-generation digital cellular networks used by mobile devices such as tablets, first deployed in Finland in December 1991. As of 2014, it has become the global standard for mobile communications – with over 90% market share, operating in over 193 countries and territories. 2G networks developed as a replacement for first generation analog cellular networks, and the GSM ...
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What is the difference between unlocked cell phone U.S. version and unlocked cell phone International version? However good news for you is GSM-1900 and GSM-850 are also used in most of South and Central America, and both Ecuador and Panama use GSM-850 exclusively. I will suggest you rather look for a quad band un-locked phones, as they have all the 4 GSM frequencies used all over the World.
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Cheat Sheet: US Wireless Carrier Bands for Unlocked Phones In a time where prepaid services are very attractive, and more and more phones are available as unlocked models that work on a variety of LTE and GSM/CDMA bands, this a question you should be able to easily find an answer to.