Introduction
This guide will help you replace the motherboard on your Samsung Galaxy Rush. It is not a lengthy process and you will have a brand new phone in about 30 minutes.
Tools
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            With a small phillips-head screw driver, remove the six screws holding the back panel in place. 
 
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            Use the pry tool to pry the back panel from the rest of the phone. Pry from the edge closest to the screen for simplicity. 
 
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            Use the tweezers to carefully remove the 2 adhesive orange ribbons. 
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            These stay attached to the motherboard so be careful not to break them. 
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            They are on the side of the phone. 
 
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            Use a philips-head screwdriver to remove the single screw on the bottom of the phone. Located to the right of the charging port. 
 
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                            Conclusion
                          
                          To reassemble your device, follow these instructions in reverse order.