Introduction
This guide will be showing you how to replace the motherboard for the Digital2 D2-861G model. Be sure to carefully remove the parts to avoid damaging the motherboard.
Tools
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            Insert spudger in the slot below the micro SD card. 
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            With the spudger tool, run along the edges of the backing undoing 20 plastic clips. 
 
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            Locate the gold colored ZIF (Zero insertion force) connector and disconnect it from the motherboard. 
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            Locate the bundled cable connector and disconnect it by simply pulling it gently or using a spudger. 
 
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            Remove two 3.51mm screws that are located on the top corners with your Phillips #00 screwdriver. 
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            Next, unplug the ZIF connector by going under the black tab and simply lift up. 
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            Slide the connector out with the pointed side of the spudger. 
 
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            Insert the pointed side of the spudger in the corner and gently lift. 
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            Once one side is lifted, use your fingers and with little force, lift up to remove the case. 
 
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            To remove the motherboard, grab the component on the top left and gently lift while pushing or pulling to the right. 
 
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To reassemble your device, follow these instructions in reverse order.