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Lenovo IdeaPad 330-15IKB 81DE CMOS Battery Replacement

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Is your Lenovo IdeaPad 330-15IKB 81DE failing to boot properly? Are you seeing error messages like “CMOS Checksum Error” or “Invalid Configuration”? These could be signs of a failing CMOS battery. This guide will walk you through the necessary steps and tools to easily replace your CMOS battery, helping your system get back to running smoothly!

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  1. Lenovo IdeaPad 330-15IKB 81DE CMOS Battery Replacement, Back Panel: crwdns2935265:01crwdnd2935265:01crwdnd2935265:03crwdne2935265:0 Lenovo IdeaPad 330-15IKB 81DE CMOS Battery Replacement, Back Panel: crwdns2935265:01crwdnd2935265:02crwdnd2935265:03crwdne2935265:0 Lenovo IdeaPad 330-15IKB 81DE CMOS Battery Replacement, Back Panel: crwdns2935265:01crwdnd2935265:03crwdnd2935265:03crwdne2935265:0

    • Ensure the laptop is powered off.

    • Turn the device over so the bottom is facing up.

    • Remove the 13 6 mm screws from the bottom of the device using a Phillips #0 screwdriver.

    • Carefully glide a Jimmy along the seam of the casing.

    • Remove the back cover of the laptop.

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  3. Lenovo IdeaPad 330-15IKB 81DE CMOS Battery Replacement, CMOS Battery: crwdns2935265:02crwdnd2935265:01crwdnd2935265:03crwdne2935265:0 Lenovo IdeaPad 330-15IKB 81DE CMOS Battery Replacement, CMOS Battery: crwdns2935265:02crwdnd2935265:02crwdnd2935265:03crwdne2935265:0 Lenovo IdeaPad 330-15IKB 81DE CMOS Battery Replacement, CMOS Battery: crwdns2935265:02crwdnd2935265:03crwdnd2935265:03crwdne2935265:0

    • Unplug the CMOS connector.

    • Gently lift the CMOS battery out of its slot.

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To reassemble your device, follow these instructions in reverse order.

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