What is a sim lock

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SIM lock:

A SIM-LOCK, NETWORK LOCK, carrier lock, imei-lock or (master) SUBSIDY lock is actually a technical constraint built into GSM and CDMA mobiles by manufacturers for use by carriers to limit the use of these phones to specific countries and/or networks. This is not like a phone (retrospectively called SIM-free or unlocked) which doesn't enforce any SIM constraints.Unlocking a phone is virtually universally legal. Furthermore, it is often legal for providers to force SIM locks for certain periods of time, varying by area.

Unlocking Technology:

A mobile can be unlocked by entering a code supplied by the network operator. Different mechanisms contain software running on the device or a computer connected to the device, hardware devices that connect to the device or over-the-air by the carrier. In most cases the unlock procedure is permanent. The code required to get rid of all locks from a smartphone is called the master code, network code key, or multi-lock code. Generally if the handset is carrier locked it will usually show one of these messages: SIM network PIN blocked, Enter lock PIN.


The main reason to unlock a mobile phone is usually to be able to utilize it with another SIM card. Customers might want to keep on using their smartphone but with a different service provider or if traveling in another country they may wish to connect to a overseas network by using a prepaid subscription.

Unlocking Services:

A number of businesses offer a imei smartphone unlocking service . This service calls for individuals whom would like to unlock a handset to provide their IMEI number to a service supplier and often they will also ask for the country and network the phone is locked to, often sent by email or submitted on their web-site. When you've confirmed that your cell phone is not Blacklisted and you plan to unlock it so you can use it with another carrier, then the most trusted companies to find [<a href= The Simple Way To IMEI Unlock A Brand New Mobile Phone] ">The Simple Way To IMEI Unlock A Brand New Mobile Phone out there is Unlock.Zone - be sure you look them up.The organization will then supply (for a fee) the unlock code for the mobile.

Unlocking Service Providers:

Disappointingly there are a lot of fraudulent on-line retailers working in the smart phone unlocking industry. As a result it pays to be sure you use a reputable service provider for such a service. To aid with your search for a reputable service provider, we've supplied a listing below (and in no particular order) of a few genuine organisations currently offering such services.

Reputable Mobile Phone IMEI Unlocking Service Providers: