What is a imei lock

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SIM lock:

A simlock, NETWORK LOCK, carrier lock, IMEI LOCK or (Master) subsidy lock is really a technical limit built into CDMA and GSM phones by producers to be used by carriers to restrict the use of these phones to specific countries and/or networks. This is unlike a cell phone (retrospectively called SIM-free or unlocked) which doesn't impose any SIM restrictions.Generally if the phones were not locked, customers may well sign an agreement with a particular organization, obtain the low priced phone, then quit paying the monthly payment (thus breaking the contract) and start using the cell phone on a different mobile phone network or maybe sell the device for a profit. SIM locking curbs this by barring a change of mobile phone network (using a new SIM).

Unlocking Technology:

A phone can be unlocked by entering a code provided by the service operator. Alternative mechanisms include software working on the handset or a pc connected to the handset, hardware devices that link to the phone or over-the-air by the service provider. More often than not the unlock operation is permanent. The code required to remove all locks from a cellphone is called the master code, network code key, or multi-lock code. Generally if the handset is network locked it will usually display one of these messages: SIM network PIN blocked, Enter lock PIN.


Mobile phone manufacturers have monetary incentives both to improve SIM lock protection (which placates service providers and allows exclusivity discounts) and also to weaken it (broadening a phone's appeal to consumers that aren't interested in the provider that offers it). Moreover, making it very hard to unlock a handset could possibly make it a lot less attractive to network service providers who've a legal liability to provide unlock codes for certain handsets or in certain countries.

Unlocking Services:

Several companies offer a carrier unlocking service . This service calls for individuals whom wish to unlock a device to give their IMEI number to a unlocking company and frequently they will also need the country and service provider the mobile is locked to, sometimes sent via email or entered on their website. The organization then will provide (at a cost to you) a unlock code for the mobile phone handset. For a lot of makes including Nokia and Samsung various services also deliver unique remote-unlocking software with instructions, where a cable connection is required to remove the SIM lock from home. Such vendors may email the unlocking code or software that will remotely unlock the unit. The cost for unlocking a telephone can differ based upon the network its locked to and the phone model itself, as every unlock code is unique to each unique handset.

Unlocking Service Providers:

Disappointingly there are a great deal of fraudulent on line retailers operating in the mobile phone imei unlocking industry. Consequently it pays to ensure you use a reliable service provider for these services. Do your due diligence and investigate every prospective retailers in advance of committing to making an order. In the case of on-line sellers, make certain they list their registered company name and corresponding registration information (all legit organization should be lawfully registered with the official authorities for their country of origin) and make sure they supply a genuine listed address and contact information on their website. In addition make certain that any payments made are done so through legitimate methods as in a recognised bank or financial institution using a debt or credit card, but never ever make payment via a direct transfer because this offers no fiancial safeguards. To assist with a search for a reputable supplier, we've provided a list below (and in no specific order) of a number of legitimate organisations currently offering such services.

Reputable Mobile Phone IMEI Unlocking Service Providers: