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If you are one of the almost 200 million American cell telephone users, you possibly signed a contract to get a steal of a deal on your telephone. Although this contract may well be fine and dandy if you keep in the very same town or city, travelers danger high roaming and per minute charges if they venture out of service location. 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 Unique 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 phone, then it is GSM and you can execute a mobile unlock on your cell.

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

Borrow an activated SIM chip from a friend utilizing a distinct wireless service provider

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

Try calling your pals telephone number from a LAN or other mobile phone

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 standard tactics to perform a mobile unlock. You could have to attempt both of them to accomplish a mobile unlock.

Some phones might be unlocked by entering a code into it. The code is generally distinctive for your certain telephone based on the IMEI (serial number) and provider. The phones IMEI is generally found in the battery case. Dont confuse this number with the SIM number, they are separate. You can search on the internet for an on-line unlock code calculator, then will enter your IMEI and phone model.

Other phones require software program to talk to their operating system to unlock. You normally connect your phone to your Pc, run a software program plan and flash your phones memory. We can sell you cables and software program programs for your phone for a mobile unlock. follow us on twitter