The two major communication systems used for mobile phones in the world are the CDMA system and the GSM system. CDMA which is the short form for Code Division Multiple Access is a type of cell phone technology.
Data and voice packets are separated using codes in CDMA which is then transmitted using a broad frequency range. CDMA is a more attractive technology for the use of 3G high-speed mobile internet since the data allocation space is much more with it. It was basically developed by Qualcomm in the U.S. and is primarily used in the U.S. and a few other Asian countries. It does not have a wider coverage. GSM, which stands for Global System for Mobile communications, is a world's most widely used cell phone technology. The coverage of GSM is more global due to its roaming and international roaming contracts.
The means of communication in a GSM cell phone is through a SIM card which communicates with a particular network. The network providers for mobile phones lock the phones which any customer buys from them. The reason for them to lock the phones is due to the tough competition between the networks, but this practice by the network providers is thought to be unfair by many. A person should be able to use any network on his cell phone when he purchases a mobile phone because he is its sole owner. How to Unlock a Cell Phone? The different steps that need to be followed to unlock a mobile phone are as under.
The first step is to determine the type of phone. It may be a CDMA or a GSM phone. A CDMA phone does not use any SIM card and therefore it is not needed to unlock it. Once you are sure your phone is a GSM one, the second step is to determine if it is really locked. This can be usually done by burrowing a SIM card from a friend who uses a different network than yours. If your mobile phone accepts that SIM card and works well with that in it then your phone is unlocked already and if it does not work and displays an error message then it is locked for sure.
The next step is to surf through the internet and to look for a reputed mobile unlock company. Such companies can provide you with the unlock code for your mobile phone through email for a rather small fee. How to Unlock a Cell Phone? The only step in this unlocking procedure is to simply key the unlock code into the phone. To test if your phone has really unlocked, try using it with some other SIM.
Unfortunately some cell phones that do not get unlocked by a simple code. It is the job of the mobile unlock company to determine if your cell phone can be unlocked simply by a code or not. If not then the phone needs to be connected to hardware via a USB cable to be unlocked. To have this done the phone needs to be sent away to the unlock company however, the hardware and the unlocking software can be purchased and you can do the unlocking yourself. However, this method might prove to be the expensive one.
Unlocking your cell phone is your right and is completely legal.