Locking a GSM phone is a built in feature provided by mobile manufacturing companies like Motorola to restrict the SIM usage on the phone to only one specific network within a particular country or a region. This is done electronically into the system of the mobile and thus restricts the usage of the mobile phones which are given within contract to the customers. If these mobile phones are not locked then users can get a discounted phone by signing into the contract of one service provider and then stop paying the monthly bill to that company to start using the services of another thus breaching the contract. Thus SIM locking makes this difficult.
But what if you want to use the mobile phone on other network also? Or you want to use it in Afghanistan or Mozambique or some distant country? What will happen when you try to use Afghanistan’s Ehsan Bayat network to make some calls?
You will pay your bill but at the same time use some other network thus you won’t break the contract. Unlocking your mobile phone, for example if you want to Motorola Defy+ unlock, Motorola Razr, Motorola Atrix 2, or any other mobile phone is a very simple job. Although you will have to pay for this as this service doesn’t come free. There are a few methods by which you can get this done if you want to use the locked phone on other networks. Any mobile phone can be unlocked just by entering into it the unlocking code which is provided by the network provider. In the event of the network provider not providing the code, there are alternatives like running software on the mobile or attaching the mobile phone to some external hardware and doing it. Generally, the unlock code is generated by using the IMIE number of the handset along with the country or the region it has been attached to by the lock. Details of the operator are also used in this unlocking process.
If you want to unlock Motorola Atrix 2, or unlock Motorola Razr, or any such high end mobile device then you must be careful with the number of times you enter the unlocking code. This is because these mobile handsets come with built in software that restricts the no. Of attempts one can make to enter the unlock code. This is to stop unauthorised unlocking of the phone by repeatedly entering random numbers. If the no. Of attempts increases the limit set, which is generally three of five, then the mobile phone becomes hard locked and you have to contact the network provider.