What is a carrierlock

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SIM lock:

A SIM-LOCK, Network Lock, Carrier-Lock, IMEI LOCK or (MASTER) subsidy lock is a technical limit built into CDMA and GSM mobile devices by manufacturers for use by carrier networks to limit using these phones to specific locations and/or networks. This is contrary to a mobile phone (retrospectively called SIM-free or unlocked) that doesn't impose any SIM constraints.

Unlocking Technology:

Typically, a locked smartphone will display a message if a restricted SIM is used, requesting the unlock code. On new phone models working on Android operating system software, the smartphone will display a message saying “SIM network unlock PIN” or “Enter Network Lock Control Key” if it is 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”. Some other handsets may possibly show different messages which include "Enter special code" or "Enter unlocking code," or in some instances the device may simply display a message stating that it is locked. Right after a valid code is typed in, the handset displays "Network unlocked” or “Network unlock successful”.


Mobile producers have financial incentives both to enhance SIM lock protection (which placates service companies and permits exclusivity offers) and then to weaken it (extending a smartphone's appeal to users that may not be interested in the service provider that offers it). In addition, making it too hard to unlock a device could possibly make it a lot less attractive to mobile phone network service providers who've a legal duty to offer unlock codes for some handsets or in selected countries.

Unlocking Services:

A number of organizations offer a IMEI unlocking service . This service calls for those people that would like to unlock a device to give their IMEI number to a service supplier and in most cases they will also ask for the country and network the device is locked to, sometimes sent through email or entered on their website. Hopefully your are sure what an I.M.E.I. number is and how you may obtain it from a phone, but what can you do with it? The leading purposes of finding the I.M.E.I. number is to permit your mobile phone to get unlocked so you can use it with an alternative network carrier, doubtlessly saving you a lot of cash by swapping to a cheaper Pay-As-You-Go plan. When you decide to unlock your phone, you have confirmed your phone is not Blacklisted, and you wanna use it on a different carrier, then the best website for The Only Real Way To Permanently Unlock Your Phone is Unlock.Zone - be sure you google them!The company will then supply (for a fee) an unlock code for the mobile. For some brands such as Nokia and Samsung several services additionally supply unique remote-unlocking software with instructions, when a cable is needed to remove the SIM lock from home. Such vendors may email the unlocking code or software which can remotely unlock the unit. The price for unlocking a cellphone may deviate according to the network it's locked to and the mobile phone model itself, as each unlock code is unique to each specific device.

Unlocking Service Providers:

Disappointingly there are lots of scammers on-line retailers active in the mobile phone IMEI unlocking industry. Consequently it pays off to make sure you find a reputable provider for this service. To aid with your search for a legitimate supplier, we've provided a list just below (and in no specific order) of several legit organisations currently offering such services.

Reputable Mobile Phone IMEI Unlocking Service Providers: