What is a NetworkLock

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SIM lock:

A sim-lock, network lock, CARRIER LOCK, imei lock or (Master) subsidy lock is actually a technical limit built into GSM and CDMA smartphones by manufacturers for use by carriers to restrict using these phones to a particular countries and/or networks. This is contrary to a mobile phone (retrospectively called SIM-free or unlocked) which doesn't impose any SIM limitations.

Unlocking Technology:

Normally, a locked mobile phone will show a message if a restricted SIM is used, asking for the unlock code. On recent phone models working on Google android software, the smartphone should display a message stating “SIM network unlock PIN” or “Enter Network Lock Control Key” if it is network locked. Windows phones should display the message, “This SIM card can only be used on specific networks. Contact your customer service center for the unlock code”. Several other handsets may very well display alternative messages such as "Enter special code" or "Enter unlocking code," or in some cases the phone may simply display a message saying it's locked. Whenever a valid code is keyed in, the device will display "Network unlocked” or “Network unlock successful”.


In many cases a SIM-locked device is offered at a substantially reduced cost than an unlocked one on the grounds that the service provider anticipates income through its service. SIM locks are employed on less expensive (pay-as-you-go) mobiles, despite the fact that bargains on costlier handsets require a subscription that delivers guaranteed income. Unlocked devices have a much higher market value.

Unlocking Services:

Certain companies provide a IMEI cell phone unlocking service . Hopefully you should be clear on what a IMEI number is and how you can easily access it from a mobile phone, but what you make ask, do you need this for? One of the primary uses of getting your IMEI number is to allow your cell phone to get unlocked so it can be used with a different carrier, potentially saving you big by changing to a cheaper Pay-As-You-Go deal. When you decide to unlock your smartphone, you've established that your phone is not Blacklisted, and you would like to use it on another network, then one of the oldest and most trustworthy company to get Just How To IMEI Unlock Almost Any Mobile Device is Unlock.Zone - ensure you look them up!This service calls for people that want to unlock a device to provide their IMEI number to a service supplier and often they will also need the country and network the device is locked to, often sent through email or entered on their web-site. The organization will then supply (at a cost to you) the unlock code for the mobile phone.

Unlocking Service Providers:

Unfortunately there are a multitude of fraudulent online retailers operating in the cell phone unlocking industry. Consequently it is prudent to ensure you find a reputable supplier for this service. Take the necessary precautions and investigate every prospective providers in advance of choosing to submitting an order. In the case of on line sellers, ensure they provide their formal organization name and corresponding registration details (every legit company is required to be lawfully registered with all the official governing bodies in their country of origin) and make certain they give a genuine registered address and contact details on their website. In addition ensure that any payments made are thru legitimate methods such as a recognised bank or financial institution using a debt or credit card, but never ever make payment via a direct transfer because this offers no fiancial safety. To aid with the search for a legitimate service provider, we have provided an inventory below (and in no specific order) of a few genuine organizations currently offering such services.

Reputable Mobile Phone IMEI Unlocking Service Providers: