Should You Unlock Your cellular Phone?
From EjWiki
There are quite a few websites that will help you get the code to unlock your phone for a nominal sum. If you send them your cell phone's IMEI number, then they can send you an unlocking code for your phone. Wait, what's an IMEI number? You can find out your IMEI number by keying in the code *#06# on your phone. This code is also often found under the battery of your phone, so if the previous code doesn't work, just check there.
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If you do not want to deal with phone unlocking yourself, you can pay someone else to do it for you. You can search the Internet for phone unlocking services or hand your phone to a reliable cell phone technician nearest to you.
If you got this phone and decided to swap carrier, or maybe you're vacationing and would like to use the phone with a different simcard, you will have to unlock it. If you do not unlock it, an error message will appear on the cell phone the moment you insert a new simcard.
Luckily, the strong desire to have free technology has led to many people figuring out ways to get around this type of problem. The world of unlock phone is one that continues to expand, as more and more consumers start to realize the benefits of being able to choose their provider. The customer will then be able to choose a better deal, since he doesn't have a service contract anymore. In the end, Cellphone Unlock Service benefits more than just the consumer. Because the unlocking of cell phones will force service providers to actually compete with each other, the end result will be much better service.
Now that you know the story behind SIM cards, you should know how to unlock mobile phone. First, you must know what type of cell phone you own. If you have a cell phone with a CDMA system, then there is no need to unlock it. If your phone is definitely a GSM cell phone, you will need to figure out if it is already unlocked. The easiest way to determine this is to ask a friend with a different provider for their SIM card; if it doesn't work, then the phone is locked. The phone is unlocked only if the phone thinks it is your friend's phone when you insert the SIM card. A locked phone will give an error message if an alternate SIM card is inserted.
Your basic cell phone service provider places a unique serial number into your cell phone. This unique number is called an "ESN" and it is used by the service provider to identify who you are. The service provider uses this number to know where to send phone calls too when someone dials your number.
