Dell Inspiron 17" 7786 2-in-1 Coin Cell (CMOS) Battery Replacement

最終更新日: December 28, 2022

1分

簡単

はじめに

The CMOS battery powers the BIOS firmware in the Dell Inspiron 17" 7786 2-in-1 laptop. When it fails, the BIOS firmware shuts down and defaults to original settings. Without a CMOS battery, the computer may not boot up at all.

If the battery is nearing its end, several things may happen. It can cause freezing, shutdowns, beeping, date and time reset, drivers disappearing, and internet connectivity.

Some other signs of a faulty CMOS battery include:

The keyboard may have reset to its original configuration.
The icons won't respond to clicks or key inputs.
The cursor may not be moving or responding.
The date and time can reset.
The drivers can disappear.
You can also have difficulties connecting to the internet.
The computer also freezes or restarts at random.
Peripherals like the keyboard, mouse and touchpad aren't responding.

There is a chance that the CMOS battery has failed. Replacing the battery is recommended in these cases.

必要な工具と部品

ツール

手順1 Base Cover

Dell Inspiron 17" 7786 2-in-1 Coin Cell (CMOS) Battery Replacement, Base Cover: 手順 1、 2の画像 1

Dell Inspiron 17" 7786 2-in-1 Coin Cell (CMOS) Battery Replacement, Base Cover: 手順 1、 2の画像 2

Remove the eight M2 5mm screws that secure the base cover using a Phillips #0 screwdriver.

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手順2

Loosen the three captive screws that secure the base closer to the hinges.
Do not attempt to remove the three captive screws! You need only to loosen them. They're supposed to stay on the base cover.

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手順3

Dell Inspiron 17" 7786 2-in-1 Coin Cell (CMOS) Battery Replacement: 手順 3、 3の画像 3

Carefully pry the base cover using an iFixit opening tool in the crevice near the hinges. Guide the pick along the edges and slightly lift upwards as you go along.
Do not start from the speaker end of the edges when opening, or you may cause further damage to your device!

翻訳