What is a imeilock

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SIM lock:

A SIMLOCK, NETWORK-LOCK, CARRIER LOCK, imei lock or (master) subsidy lock serves as a technical limit built into CDMA and GSM cellphones by manufacturers for use by service providers to restrict the usage of these phones to specific locations and/or networks. This is in comparison with a phone (retrospectively called SIM-free or unlocked) that doesn't impose any SIM limitations.

Almost all mobile devices can be unlocked to work with any GSM mobile phone network provider, however the phone may still show the original logos and may not support features of the new service provider. In addition to the locking, cell phones could also have firmware installed on them which is specific to the mobile phone network provider. This firmware is installed through the service provider which is separate from the locking mechanism. A lot of phones can be unbranded by re-flashing an alternative firmware version, a process suitable for advanced users only.


Unlocking Technology:

Typically, a locked handset will show a message if a restricted SIM is used, asking for the unlock code. On new phone models operating on Android mobile phone software, the cellphone should show a message stating “SIM network unlock PIN” or “Enter Network Lock Control Key” if it's network locked. Windows phones will display the message, “This SIM card can only be used on specific networks. Contact your customer service center for the unlock code”. Other handsets may display alternative messages such as "Enter special code" or "Enter unlocking code," or in some circumstances the device will simply present a message saying it's locked. When a valid code is entered, the mobile displays "Network unlocked” or “Network unlock successful”.


Economics:

In many cases a SIM-locked mobile is offered for sale at a considerably reduced price than an unlocked one because the supplier is expecting income thru its service. SIM locks are employed on lower priced (pay-as-you-go) mobile phones, whilst special discounts on more costly handsets need a subscription that delivers guaranteed income. Unlocked phones have a much higher market value.


Unlocking Services:

Plenty of companies provide a remote phone unlocking service . This service calls for all those whom need to unlock a mobile phone handset to supply their IMEI number to a unlocking company and quite often they will also request the country and network the handset is locked to, either sent through email or entered on their web site. The company then will supply (for a fee) an unlock code for the handset.


Unlocking Service Providers:

Unfortunately there are a multitude of scammers sites active in the cellphone unlocking industry. Consequently it is prudent to make sure you locate a honest supplier for such a service. Take the necessary precautions and investigate any prospective suppliers prior to committing to place an order. In the case of online suppliers, make sure they provide their public organization name and associated registration details (every legit company should be lawfully registered with the official authorities in their country of origin) and ensure they provide a legitimate certified address and contact information on their web site. Furthermore make certain that any payments made are done so thru legitimate sources such as a recognized bank or financial institution using a debt or credit card, but never ever make payment via a direct transfer as this offers no fiancial safety. To assist with a search for a trustworthy supplier, we have provided a checklist just below (and in no specific order) of several legitimate organizations currently offering such services.


Reputable Mobile Phone IMEI Unlocking Service Providers: