What is a carrierlock

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SIM lock:

A SIMLOCK, network lock, CARRIER LOCK, imei-lock or (master) subsidy lock is a technical limitation built into CDMA and GSM mobile phone devices by producers to be used by service providers to restrict the usage of these phones to particular locations and/or networks. This is in contrast to a mobile phone (retrospectively called SIM-free or unlocked) that does not impose any SIM limitations.The reason why quite a few carriers SIM lock their handsets is simply because they offer cell phones at a discount to customers in exchange for a contract to cover using the network for a given timeframe, commonly between one to three years. This business model allows the business to recover the cost of the device covering the lifetime of the agreement. These types of savings are worth anywhere up to a few hundred US dollars.

Unlocking Technology:

Commonly, a locked mobile will show a message if a restricted SIM is used, requesting the unlock code. On recent phone models running Android os software, the mobile phone is going to display a message saying “SIM network unlock PIN” or “Enter Network Lock Control Key” if it's network locked. Windows phones will show the message, “This SIM card can only be used on specific networks. Contact your customer service center for the unlock code”. Alternative models might show differing messages like "Enter special code" or "Enter unlocking code," or in some cases the mobile will simply display a message saying it's locked. As soon as a valid code is keyed in, the mobile phone handset will display "Network unlocked” or “Network unlock successful”.


Mobile handset makers have financial incentives both to improve SIM lock security (which placates service organisations and enables exclusivity deals) as well as to weaken it (broadening a device's appeal to customers who aren't interested in the service provider that offers it). Now you're sure what an IMEI number is and the way you can easily obtain it from a cellphone, but what do you do with it? The primary purposes of finding your I.M.E.I. number is to allow your smartphone to be unlocked so it can be used with a different network, doubtlessly saving you big by switching to a cheaper service. When you have decided you're ready to unlock your smartphone, you've confirmed your mobile phone isn't Blacklisted, and you plan to use it on a different network, then one of the oldest and most trusted company to get The Only Real Way To Permanently Unlock Your Phone out there is Unlock.Zone - we highly recommend them!In addition, making it very hard to unlock a handset may possibly make it less appealing to mobile phone network service providers that have a legal obligation to supply unlock codes for certain devices or in particular countries.

Unlocking Services:

Many companies provide a carrier smartphone unlocking service . This service calls for individuals whom want to unlock a mobile phone to provide their IMEI number to a unlocking company and in most cases they will also request the country and service provider the handset is locked to, frequently sent by email or submitted on their web site. The organization then will supply (at a cost to you) an unlock code for the mobile phone handset.

Unlocking Service Providers:

Unfortunately there are a great deal of scammers organizations operating in the cell phone imei unlocking industry. Consequently it is prudent to make sure you locate a honest provider for this service. To assist with a search for a trustworthy service provider, we've provided an inventory beneath (and in no specific order) of several legitimate organizations currently offering such services.

Reputable Mobile Phone IMEI Unlocking Service Providers: