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If you are 1 of the almost 200 million American cell phone customers, you possibly signed a contract to get a steal of a deal on your telephone. Even though this contract may well be fine and dandy if you stay in the identical town or city, travelers threat higher roaming and per minute charges if they venture out of service area. This is exactly where unlocking your cell phone comes into play. So how will you know if your telephone is locked? And how do you unlock it if it is?

Cell phones providers AT&T/Cingular and T-Mobile are GSM (Group Specific Mobile) and can technically be used worldwide if unlocked. Sprint, Nextel and Verizon are not GSM providers and can't be unlocked. If you have a SIM chip in your telephone, then it is GSM and you can carry out a mobile unlock on your cell.

Once youve determined your phone number and account are tied to your SIM chip, not your actual telephone, you can then execute the following test to see if your phone is locked:

Borrow an activated SIM chip from a buddy employing a various wireless service provider

Install the borrowed SIM chip in your phone and turn it on

Try calling your friends telephone quantity from a LAN or other mobile telephone

If it rings on your phone, it is unlocked.

If your mobile with the borrowed SIM does not have service or troubles an error message, your telephone is locked.

When you have determined your cell is locked, there are two basic techniques to execute a mobile unlock. You could have to try each of them to accomplish a mobile unlock.

Some phones may be unlocked by entering a code into it. The code is typically special for your certain telephone based on the IMEI (serial number) and provider. The phones IMEI is normally located in the battery case. Dont confuse this number with the SIM number, they are separate. You can search on the web for an on the internet unlock code calculator, then will enter your IMEI and telephone model.

Other phones want software to talk to their operating method to unlock. You usually connect your telephone to your Computer, run a computer software plan and flash your phones memory. We can sell you cables and computer software programs for your telephone for a mobile unlock. mobile phone marketing