Introduction
The SIM card stores identifying user and network data, and it should be removed before any serious repair work is done on a device. This guide will show a user how to remove the SIM card after removing the battery.
Parts
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            With your thumb press down on the locking- button on the back of the BlackBerry 7280. 
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            Slide the battery cover off the device. 
 
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            Hold the device with both hands. 
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            Lift the SIM card holder using your thumb and index finger. 
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            Remove the SIM card from the device. 
 
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                            Conclusion
                          
                          To reassemble your device, follow these instructions in reverse order.