What is a Network Lock

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SIM lock:

A sim-lock, network lock, carrier-lock, IMEI LOCK or (MASTER) SUBSIDY lock serves as a technical constraint built into GSM and CDMA phones by manufacturers to be used by service providers to restrict using these phones to a particular countries and/or networks. When you've confirmed your smartphone is not Blacklisted and you would like to unlock it so you can use it with a different network, then the most trustworthy sites to locate [<a href= How To Permanently Unlock Your Phone] ">How To Permanently Unlock Your Phone is Unlock.Zone - make sure you look them up.This is contrary to a phone (retrospectively called SIM-free or unlocked) which doesn't enforce any SIM restrictions.

Unlocking Technology:

A mobile phone can be unlocked simply by entering a code supplied by the service operator. Alternative mechanisms contain software working on the handset or a computer attached to the device, hardware devices that connect to the mobile or over-the-air by the service provider. Typically the unlock process is permanent. The code needed to get rid of all locks from a smartphone is known as the master code, network code key, or multi-lock code. Generally if the device is carrier locked it will usually show one of the following messages: SIM network PIN blocked, Enter lock PIN.


The key reason to unlock a handset is usually to be able to utilize it with an alternative SIM card. Consumers might like to keep on using their phone but with a different service provider or if traveling abroad they might want to connect to a overseas network using a pay as you go subscription.

Unlocking Services:

A number of companies provide a network cell phone unlocking service . This service needs people whom would like to unlock a device to provide their IMEI number to a service supplier and sometimes they will also request the country and network the mobile phone is locked to, frequently sent via email or submitted on their website. The organization then will provide (at a cost to you) an unlock code for the phone.

Unlocking Service Providers:

Disappointingly there are lots of dodgy service providers working in the cell-phone imei unlocking industry. Consequently it is recommended to make sure you use a genuine provider for such a service. To aid with the search for a trustworthy service provider, we've supplied a listing just below (and in no specific order) of a number of legitimate organizations currently offering such services.

Reputable Mobile Phone IMEI Unlocking Service Providers: