delayed insertion of CMOS battery

Fujitsu Lifebook e8020 notebook
March 25, 2010 at 19:30:03
Specs: Windows XP
I took out the CMOS Battery and replaced after 2nd day, now LCD screen display is lost. please help.

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March 25, 2010 at 20:15:23
Why did you take out the battery in the 1st place? What were you trying to "fix"?

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March 25, 2010 at 20:19:57
to clear off the bios password. have to go for urgent piece of work and my return was on the second day.

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March 25, 2010 at 21:02:01
"to clear off the bios password"

The notebook didn't come from the factory with a BIOS password, someone must have entered the BIOS & created the password. If not you, then who? Why did you want to clear the password anyway? There's very few BIOS settings that can be changed in an OEM system...I can only guess that you wanted to change the boot order?

BIOS Hashing Codes

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March 25, 2010 at 21:14:46
Your removing the Cmos battery has nothing to do with you getting no display. The laptop will work with the Cmos battery removed.
We hear about laptops losing their LCD display frequently.

No video be caused by either
- your main battery isn't being charged up enough for whatever reason,
- or - the backlight or the voltage inverter that supplies high voltage to the backlight is faulty.

Laptop no video, and battery, AC adapter, power jack T shooting:

See response 1:

Never plug in a video cable from a monitor when the computer is running.

Some laptops will produce a display on an external monitor without you having to do anything.

Others have a key or key combo you must press to toggle onboard LCD display / external display / sometimes, bith displays. See the Owner's or Users's manual for your model.

"to clear off the bios password."

If this is what you removed the cmos battery on....

"Product: Fujitsu Lifebook e8020 notebook"

If it's your laptop, how come you don't know the password(s) ?

You almost always cannot remove bios passwords (if you don't know it/them) on a notebook unless it's more than about 10 years old - the password info on laptops newer than that is stored on a separate chip that cannot have it's user data erased by removing the power to it, rather than in the Cmos part of the bios chip.

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