Unblock the SIM Card
Unblocked SIM cards allow you to use multiple devices with one cellular plan, as well as to use the SIM card outside the country. Some cell phone providers do not make the instructions for unblocking a SIM card readily available. However, knowing basic information about your cell phone will allow you to unblock your SIM card quickly.
Instructions
1. Determine the model number of your phone. Phone models sometimes have slightly different software from similar models. Locate your phone's model number by either looking in the original packaging or turning the phone off, removing the battery and looking for the model number on the base of the phone where the battery was located. With some phones, the specific model will come up on the screen when you turn the phone on.
2. Record your phone's IMEI number. An IMEI number, also known as the international mobile equipment identity number, identifies your phone for security reasons. You can find your IMEI number by turning off the phone, removing the battery and locating the 15 digit number on the base of the phone, behind the battery.
3. Contact your cellular provider and speak with the technical support department. Have the model number and the IMEI number of your cellular phone available. Depending on your provider, the technician may be able to give you the unblock code for your phone. Each phone has a different method for inputting the unlock code. Your technical support representative will guide you through the process.
4. If your provider is unable to provide the unlock code (sometimes due to contractual obligations with the phone manufacturer) search online for websites that will help you unlock the SIM card (see resources). They may charge a fee in the range of $5 to $25. Visit the site and input your IMEI number. You should receive your unlock code within 24 to 48 hours.
5. Input the unlock code into your phone. Each phone and model has different steps for unlocking the SIM card once you have the code. Some websites will provide instructions for unlocking your phone after inputting your IMEI number (see resources). Input your model number and select your phone's brand (BlackBerry, HTC, etc.) to get your instructions.
Tags: your phone, IMEI number, model number, unlock code, your IMEI