Introduction
Follow this guide to replace the upper plastic case on your Xbox One X model 1787. You might do this to replace a broken upper case or install a custom version.
Turn off the console and unplug any cables before beginning this guide.
Tools
Parts
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Use blunt tweezers to peel off the sticker covering the right-side screw on the back of the console.
 
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Use a T10 Torx screwdriver to remove the two 12.6 mm–long screws located on the back of the console.
 
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Rotate the console 90 degrees.
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Pull the front of the upper plastic case horizontally toward the front of the console until it comes to a stop. This slides the clips out of the slots on the upper plastic case.
 
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Rotate the console 90 degrees so that the back is facing you.
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Lift up the left side of the upper plastic case (as viewed from the back of the console), stopping when it won’t lift any further.
 
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While continuing to hold the left side of the upper plastic case, push up on the right side to move the right-side screw boss out of the way.
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Swing the upper plastic case open to 75 degrees.
 
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To reassemble your device, follow these instructions in reverse order.