What is a imeilock

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SIM lock:

A SIM lock, NETWORK LOCK, CARRIER LOCK, imei-lock or (Master) subsidy lock serves as a technical restriction built into GSM and CDMA cellular phones by producers to be used by carrier networks to limit using these phones to particular countries and/or networks. This is in contrast to a cell phone (retrospectively called SIM-free or unlocked) that doesn't impose any SIM restrictions.SIM locking is extremely common if subsidized devices are offered with pre pay contracts. What is important to note, however, that the technology tied in with the cellphone will have to be compatible with the technology being employed by the network carrier. A GSM cellphone will only work with a GSM carrier and won't operate on a CDMA service. In the same way, a CDMA smartphone is only going to work with a CDMA network and won't work on a GSM service. Keep in mind that new (2013 and newer) top end mobiles are capable of supporting both CDMA and GSM technologies, permitting consumers to utilize their phones on virtually any network.

Unlocking Technology:

A smartphone can be unlocked by entering a code provided by the network operator. Alternative mechanisms include software operating on the device or a computer connected to the handset, hardware devices that link to the phone or over-the-air by the provider. Typically the unlock operation is permanent. The code needed to remove all locks from a smartphone is referred to as the master code, network code key, or multi-lock code. If the device is carrier locked it will typically display one of these messages: SIM network PIN blocked, Enter lock PIN.


Handset suppliers have commercial incentives both to enhance SIM lock security (which placates network providers and allows exclusivity deals) and to weaken it (increasing a device's overall appeal to users who typically are not interested in the service provider that offers it). Additionally, making it too hard to unlock a phone could possibly make it much less desirable to network service providers that have a legal obligation to supply unlock codes for some handsets or in certain countries.

Unlocking Services:

Various businesses provide a on-line unlocking service . This service calls for those people whom would like to unlock a handset to give their IMEI number to a service supplier and frequently they will also request the country and cellular network the mobile phone handset is locked to, frequently sent through email or submitted on their web-site. The company will then supply (for a fee) the unlock code for the mobile.

Unlocking Service Providers:

Unfortunately there are a multitude of dodgy service providers working in the smart phone network unlocking industry. As a consequence it pays off to make sure you locate a trustworthy supplier for these services. Do your due diligence and investigate every potential providers prior to choosing to making an order. In the case of on line providers, make certain they document their formal organization name and corresponding registration information (every legitimate organization is required to be legally registered with all the official authorities within their country of origin) and make certain they provide a genuine registered address and contact details on their web-site. Additionally make sure that any payments made are done so through legitimate methods as in a recognized 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 the search for a legitimate company, we have supplied a list below (and in no specific order) of a few legitimate organisations currently offering such services.

Reputable Mobile Phone IMEI Unlocking Service Providers: