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Follow this guide if you wish to replace the CMOS battery on your Lenovo ThinkPad X1 Carbon 5th Gen, Type 20K3-S0DQ00 S/N PF-0VPYSA 1710. This will be a fairly simple guide and should be quick for most users. Having a proper a CMOS battery allows for the laptop to be used without being connected to a power source.
The device should be powered off and disconnected from the charger when being worked on.
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Turn the laptop on to its back.
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Use the Phillips #1 screwdriver to remove five 1.2 mm screws from the back cover of the laptop.
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Remove the back cover using the opening tool, leaving the laptop back exposed.
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Use the opening tool to pry the edge and work your way around the perimeter.
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Use the Phillips #1 screwdriver to remove the four 1.2 mm screws that secure the battery.
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Remove the battery using your hand or a prying tool.
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Once the battery is removed the CMOS battery will be exposed.
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Disconnect the CMOS cable from the socket on the motherboard.
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To reassemble your device, follow these instructions in reverse order.
To reassemble your device, follow these instructions in reverse order.
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Thank you for was cristal clear instructions :-)