Einleitung
If your HP Envy x360 m Convertible (Model 15m-cn0012dx) isn’t reading SD cards, use this guide to replace the SD card motherboard.
A faulty SD card reader will not even recognize that there is a card in the slot. It will not show up on the computer desktop screen.
Before starting, make sure all external connections are unplugged and the computer is turned off.
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Set the laptop face down.
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Peel back the grey screw guards, along the top and bottom edge of the back case. It may be helpful to use a spudger to get started.
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Pry open the back cover using the iFixit Opening Tool.
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While using the tool, place a pick at each corner of the computer (be careful and do it slowly).
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Once all the corners are slightly lifted, carefully pop off the back cover.
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Use the iFixit opening tool to unlatch the ZIF connector with the cable labelled 'SD' from the daughterboard.
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Slide out the interconnect ribbon cable.
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Using a Phillips #0 screwdriver, remove the two 4mm screws on holding down the SD card daughterboard.
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Remove the SD card daughterboard.
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To reassemble your device, follow these instructions in reverse order.
