What is a CARRIER LOCK?
From EjWiki
Moreover, a CDMA mobile phone can only work with a CDMA network and will never work on a GSM network. Commonly, a locked phone will show a message if a restricted SIM is used, requesting the unlock code. On recent phone models working on Android operating system software, the cell phone should show a message saying “SIM network unlock PIN” or “Enter Network Lock Control Key” if it is network locked. Windows phones are going to show the message, “This SIM card can only be used on specific networks. Contact your customer service center for the unlock code”. Alternative devices may very well display assorted messages for instance , "Enter special code" or "Enter unlocking code," or sometimes the mobile may simply present a message stating it's locked. The minute a valid code is keyed in, the phone will display "Network unlocked” or “Network unlock successful”.
Economics: Most of the time a SIM-locked handset is offered at a considerably lower cost than an unlocked one on the grounds that the supplier is expecting income through its service. SIM locks are employed on more affordable (pay-as-you-go) handsets, while special discounts on higher priced handsets require a subscription that gives guaranteed income. Unlocked mobiles have a improved market value.
Unlocking Services: Various businesses provide a smartphone unlocking service. This service needs those people whom wish to unlock a handset to supply their IMEI number to a unlocking company and often 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 provide (for a fee) a unlock code for the mobile. For some brands for example Nokia and Samsung numerous services also offer unique remote-unlocking software with instructions, when a cable connection is required to remove the SIM lock at home. Such suppliers may email the unlocking code or software which will remotely unlock the device. The cost for unlocking a mobile phone may vary depending on the mobile phone network its locked to and the handset model itself, as every unlock code is unique to each unique device.
Unlocking Service Providers: Regrettably there are a large number of fraudulent companies working in the cellphone imei unlocking industry. As a consequence it is prudent to be sure you use a trustworthy supplier for such a service. Take the necessary precautions and investigate every prospective retailers before choosing to place an order. In the case of on line suppliers, make sure they document their official business name and corresponding registration information (every legit organization should be legally registered with the official governing bodies for their country of origin) and make certain they provide a legitimate listed address and contact information on their web site. In addition make certain that any payments made are by legitimate methods as in a recognized bank or financial institution using a debt or credit card, but do not ever make payment via a direct transfer because this provides no fiancial safeguards. To assist with your search for a trustworthy service provider, we've provided a listing beneath (and in no particular order) of a number of legitimate organisations currently offering such services.
Reputable Mobile Phone IMEI Unlocking Service Providers: Mobile UnlockedDoctorSIMUnlock.ZoneUnlock BaseUnlock RiverCell Unlocker
