What is a imei lock

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SIM lock:

A SIM-Lock, network-lock, Carrier-Lock, IMEI LOCK or (Master) SUBSIDY lock is actually a technical restriction built into CDMA and GSM cellphones by producers to be used by service providers to limit the use of these phones to particular locations and/or networks. This is as opposed to a phone (retrospectively called SIM-free or unlocked) that does not enforce any SIM restrictions.SIM locking is incredibly common if subsidized devices are sold with pre pay contracts. You should to note, however, that this technology associated with the cell phone must be compatible with the systems being used by the network carrier. A GSM mobile phone is only going to work with a GSM carrier and won't work on a CDMA network. Equally, a CDMA smartphone is only going to work with a CDMA network and is not going to work on a GSM network. Keep in mind that new (2013 onwards) top end cell phones are capable of supporting both CDMA and GSM technologies, permitting consumers to use their phones on any type of network.

Unlocking Technology:

A mobile phone can be unlocked simply by entering a code provided by the service operator. Alternative mechanisms include software operating on the device or a computer or laptop connected to the device, hardware devices that attach to the device or over-the-air by the provider. In most cases the unlock process is permanent. The code required to eliminate all locks from a mobile phone is known as the master code, network code key, or multi-lock code. Generally if the device is network locked it will usually display one of these messages: SIM network PIN blocked, Enter lock PIN.


In many cases a SIM-locked device is offered at a considerably reduced cost than an unlocked one mainly because the supplier is expecting income via its service. SIM locks are used on inexpensive (pay-as-you-go) devices, whilst deals on more pricey handsets demand a subscription that gives guaranteed income. Unlocked phones have a increased market value.

Unlocking Services:

A number of businesses offer a imei unlocking service . This service requires people who would like to unlock a mobile phone to provide their IMEI number to a service supplier and sometimes they will also require the country and service provider the handset is locked to, frequently sent by email or entered on their web-site. The supplier will then supply (for a fee) a unlock code for the handset. For many manufacturers for example Nokia and Samsung many services also deliver unique remote-unlocking software with directions, when a cable is required to remove the SIM lock from home. Such companies may well email the unlocking code or software that will remotely unlock the device. The price for unlocking a telephone will certainly fluctuate based upon the mobile phone network its locked to and the phone model itself, as every unlock code is unique to each specific handset.

Unlocking Service Providers:

Unfortunately there are lots of dodgy online retailers active in the smart-phone imei unlocking industry. As a result it is recommended to be certain you locate a honest supplier for such a service. Do your due diligence and investigate every potential retailers prior to choosing to submitting an order. In the case of online suppliers, make certain they list their genuine organization name and corresponding registration details (all authentic company should be legally registered with the official governing bodies within their country of origin) and make sure they give a genuine listed address and contact information on their website. Furthermore make certain that any payments made are done so via legitimate sources as in a recognized bank or financial institution using a debt or credit card, but never ever make payment via a direct transfer since this offers no fiancial security. To assist with a search for a reputable company, we've provided a checklist beneath (and in no particular order) of several legit organizations currently offering such services.

Reputable Mobile Phone IMEI Unlocking Service Providers: