Introduction
Access the motherboard to replace the CMOS battery if your computer is having issues tracking the date and time. It is recommended to wear an anti-static wrist strap to avoid damaging the electronic components of the computer.
Ce dont vous avez besoin
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Turn over the laptop, and push in the clips to take out the battery.
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Remove screws securing the hard drive
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Remove hard drive by pulling on the tab to slide it out.
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Remove the memory card by pressing on the latches on either side.
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Remove the screws securing the optical drive, then slide out the optical drive.
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Turn computer over and open it.
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Carefully pry off keyboard using spudger.
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Remove the ribbon cable by pulling up on the tab where it is attached, then slide it out.
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Unplug the smaller ribbon cable by pulling up on the tab where it is attached, then slide it out.
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Unplug the motherboard cable by pulling up on the tab where it is attached, then slide it out.
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Unplug the white ribbon cable by pulling up on the tab where it is attached, then slide it out.
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Unplug the black and white cables connected to the Wi-Fi chip.
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Locate and disconnect connecting cables on motherboard.
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Remove the remaining screws securing the motherboard to remove it.
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Flip over motherboard and locate CMOS battery
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Pry off battery with spudger.
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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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2 commentaires
Dont wast you time for these steps because this model 3521 ,only 2nd step enough for remove cmos battery . Once remove the Surface Cover ,you can see the cmos battery .. no need to remove all the components .thanks me later .
Thank you, kind man)