What is a simlock? — различия между версиями

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(What is a simlock?)
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Версия 14:05, 1 июля 2020

A SIM-LOCK, Network-Lock, CARRIER LOCK, IMEI LOCK or (MASTER) SUBSIDY lock serves as a technical restriction built into GSM and CDMA mobile devices by manufacturers to be used by providers to restrict the usage of these phones to specific countries and/or networks. This is in contrast to a phone (retrospectively called SIM-free or unlocked) which doesn't enforce any SIM constraints.SIM locking is incredibly common if subsidized devices are sold with pre pay contracts. It is really important to note, however, that the technology linked with the mobile phone needs to be compatible with the technology used by the network carrier. A GSM phone can only function with a GSM carrier and will never operate on a CDMA network. In the same way, a CDMA mobile is only going to work with a CDMA network and will never work on a GSM network. Be aware that modern (2013+) pricier cell phones are equipped to support both CDMA and GSM technologies, letting consumers to utilize their mobile phones on every network.

Unlocking Technology: Normally, a locked phone will show a message if a restricted SIM is used, asking for the unlock code. On modern phone models operating on Google android software, the cell phone should show 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”. Other devices could display assorted messages like "Enter special code" or "Enter unlocking code," or sometimes the phone will simply present a message saying that it is locked. The minute a valid code is entered, the mobile displays "Network unlocked” or “Network unlock successful”.

Economics: The main reason to unlock a mobile phone is going to be able to utilize it with another type of SIM card. Users may want to keep on using their cell phone but with a new provider or while traveling in another country they might want to connect to a foreign network with a pay as you go subscription.

Unlocking Services: A lot of businesses offer a remote unlocking service. This service requires those people that wish to unlock a mobile phone handset to provide their IMEI number to a service supplier and sometimes they will also require the country and cellular network the mobile phone is locked to, frequently sent through email or entered on their website. The supplier will then provide (once you have paid) the unlock code for the mobile phone.

Unlocking Service Providers: Disappointingly there are many of fraudulent websites operating in the smart phone carrier unlocking industry. Consequently it is advisable to make sure you locate a trustworthy supplier for these services. Take the necessary precautions and investigate any prospective dealers in advance of choosing to place an order. In the case of on-line providers, ensure they publish their registered organization name and corresponding registration information (every authentic company must be legally registered with the official authorities for their country of origin) and make sure they supply a genuine registered address and contact information on their website. Additionally make certain that any payments made are through legitimate sources for instance a recognized bank or financial institution using a debt or credit card, but never ever make payment via a direct transfer because this provides no fiancial safety.