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

Cell phones providers AT&T/Cingular and T-Mobile are GSM (Group Special Mobile) and can technically be utilized worldwide if unlocked. Sprint, Nextel and Verizon are not GSM providers and cannot be unlocked. If you have a SIM chip in your phone, then it is GSM and you can perform 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 phone, you can then carry out the following test to see if your phone is locked:

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

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

Try calling your buddies telephone quantity from a LAN or other mobile phone

If it rings on your telephone, it is unlocked.

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

Once you have determined your cell is locked, there are two basic techniques to carry out a mobile unlock. You could have to try both of them to accomplish a mobile unlock.

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

Other phones need software program to talk to their operating system to unlock. You usually connect your phone to your Computer, run a software plan and flash your phones memory. We can sell you cables and computer software programs for your phone for a mobile unlock. iphone