Introduction
If you do need to replace your ZTE Quest's motherboard, this guide will take you through the process of opening your device and fully removing the motherboard.
Tools
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            Orient the device so that the inset on the right side of the device is facing you. 
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            Insert the spudger into the inset and carefully remove the back panel. 
 
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            Use the JIS #000 screwdriver to remove the six 3.0mm screws placed in the back of the ZTE Quest. 
 
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            Pull back the tape encasing the brown ribbon cable connector. 
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            Remove the ribbon cable from its socket. 
 
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            Unplug the flat-top connector by using a pair of tweezers to pry up each side before removing the connector from its socket. 
 
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                            Conclusion
                          
                          To reassemble your device, follow these instructions in reverse order.