Introduction
If you are removing or replacing the Blackberry 7520 LCD screen, look here for support.
Tools
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            Turn the phone upside down. 
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            Push down on the black button on the back of the phone to slide the rear panel off. 
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            The battery should be visible now. 
 
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                            Conclusion
                          
                          To reassemble your device, follow these instructions in reverse order.
One comment
It’s too bad that iFixit didn’t post a teardown listing the parts for the BlackBerry 7520, since so little is known about its parts.