Introduction
This guide will allow you to detach the faceplate in order to replace existing buttons or screen on your Sony Ericsson W890i
Tools
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            You can now access the phone's battery. 
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            Using a spudger, remove the battery and set it aside. 
 
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            Remove the two small rubber pieces that cover the lower screws. 
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            Using a T-6 Torx wrench or screwdriver, remove all four of the small screws at the top and bottom corners on the back of the phones. 
 
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            Gently pry off the faceplate using a plastic opening tool. 
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            Insert the plastic opening tool into the middle of the front and back panels of the phone. 
 
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                            Conclusion
                          
                          To reassemble your device, follow these instructions in reverse order.