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If you are one particular of the practically 200 million American cell telephone customers, you possibly signed a contract to get a steal of a deal on your telephone. Even though this contract may be fine and dandy if you keep in the same town or city, travelers threat high roaming and per minute fees if they venture out of service area. This is where unlocking your cell telephone 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 Specific Mobile) and can technically be utilised 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 carry out a mobile unlock on your cell.

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

Borrow an activated SIM chip from a friend using a different wireless service provider

Set up the borrowed SIM chip in your telephone and turn it on

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

If it rings on your telephone, it is unlocked.

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

When you have determined your cell is locked, there are two fundamental techniques to carry out a mobile unlock. You might have to try each of them to accomplish a mobile unlock.

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

Other phones need software program to talk to their operating method to unlock. You generally connect your telephone to your Computer, run a software program and flash your phones memory. We can sell you cables and software applications for your phone for a mobile unlock. iphone