Do not turn off your computer or disconnect from the power source while updating the BIOS as this could harm your computer. During the update, your computer will restart and you may briefly see a black screen.

Before updating, please read the installation instructions and important information noted below.

Dell Latitude C800 System BIOS, A20

Latitude C800 FlashBIOS Version A20
Recommended

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Fixes & Enhancements

The following updates were made to the A19 BIOS to create A20:

Issues Fixed:
1. Fixed issue in which systems may fail to complete POST with 256MB
RAM installed.
2. Fixed issue in which Remote BIOS Update may fail to update the
BIOS.
3. Fixed issue in which the fans may remain on high speed constantly.
4. Fixed issue in which a suspend initiated by closing the lid may
cause the LCD display to resume in compressed font mode.
5. Fixed issue seen when using Safeguard Easy security software in
which a "No bootable devices" error is seen after entering
the correct password.
6. Fixed issue in which WinDVD will pause after a Standby is
initiated from the Start Menu with USB speakers attached.
7. Fixed issue in which the user is not able to enter System Setup
after booting to a CD-ROM drive.
8. Fixed issue where "Time-of-Day" intermittently shows up as all
zeros.
9. Fixed issue seen when resuming from hibernate on battery power
only in which the OS may report unsafe removal of a USB device.
10. Fixed issue where system does not correctly detect the battery
when inserted and removed several times.
11. Fixed issue in which the system fails to obtain an IP address
from a DHCP server when booting from a PXE-compliant CardBus NIC.
12. Fixed issue seen Windows 2000 and Windows XP in which a USB
device may be re-enumerated after warm undock.
13. Fixed issue in which the OS does not always detect a battery
change.
14. Fix CMOS error seen on some systems at POST (invalid CMOS
configuration) after over 3 hours of continuous reboots.
15. Fixed issue in which the OS may report that a battery is
charging even if the charger is disabled.
16. Fixed lock-ups seen when the BIOS password screen is repeatedly
aborted (i.e. wrong password entered) and the system re-suspends.
17. Fixed issue in which the system loops on suspend when a
critically low battery is installed.
18. Fix problem that leads to intermittent hangs when playing DVDs
under Windows XP and Windows 2000.
19. Fixed issue in which the serial port is not initialized properly
preventing some serial comms applications from working.
20. Fixed issue in which ACPI may report that both batteries are
charging even though only one can charge at a time.


Enhancements:
1. Configure PS/2 devices earlier in POST, allowing earlier detection
of "F2" and "F12" keys.
2. Increased the amount of time before the system shuts down when
swapping batteries without AC power attached when in suspend mode.
3. Added support for faster resume from hibernate.
4. Allow changes to Touchpad/Mouse settings in System Setup to take
effect immediately instead of requiring a reboot.
5. Updated the ATI Video BIOS to version 4.095.
Read More

Version

A20, A20

Release date

07 May 2002

Download Type

System BIOS

Category

BIOS

Importance

Optional
Dell Technologies recommends reviewing this update to determine if it applies to your system. The update contains changes that impact only certain configurations or provides new features that may or may not apply to your environment.
Available formats

File Format: ZipPack External
File Name: A20-C800.exe
File Size: 2.26 MB
Format Description:
This file contains a compressed (or zipped) set of files. Download the file to a folder on your hard drive, and then run (double-click) it to unzip the set of files. Follow the instructions to complete the installation.
To ensure the integrity of your download, please verify the checksum value.
MD5:
Not available
SHA1:
Not available
SHA-256:
Not available

File Format: One or more self extracting disk images inside of a self extracting zip
File Name: C800-A20.exe
File Size: 534.5 KB
Format Description:
This file contains a compressed (or zipped) set of files. Download the file to a folder on your hard drive, then double-click it to unzip the set of files. Follow the instructions to complete the installation.
To ensure the integrity of your download, please verify the checksum value.
MD5:
Not available
SHA1:
Not available
SHA-256:
Not available

File Format: Flash BIOS executable
File Name: C800_A20.exe
File Size: 344.89 KB
Format Description:
This file format consists of a BIOS-executable file. To use it, download the file and copy it to a DOS-bootable USB flash drive, then boot the system to the USB flash drive and run the program.
To ensure the integrity of your download, please verify the checksum value.
MD5:
Not available
SHA1:
Not available
SHA-256:
Not available

File Format: A text file containing customer friendly fixes and enhancements information
File Name: C800_A20.TXT
File Size: 24.47 KB
Format Description:
This file format contains plain text which can be viewed with a standard text editor.
To ensure the integrity of your download, please verify the checksum value.
MD5:
Not available
SHA1:
Not available
SHA-256:
Not available

By downloading, you accept the terms of the Dell Software License Agreement.

Additional details

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Floppy Disk Boot to Disk for C800-A20.exe

Download

1. Click Download Now, to download the file.
2. When the File Download window appears, click Save (Windows XP users will click Save) this program to disk and click OK. The Save In:
window appears.
3. From the Save In: field, click the down arrow then click to
select Desktop and click Save. The file will download to your desktop.
4. If the Download Complete window appears, click Close. The file
icon appears on your desktop.

Hard Drive Floppy Disk Creation

1. Get 1 blank, formatted floppy disks.
2. Double-click the new icon (it looks like a floppy diskette) on
the desktop. The Self-Extractor window appears.
3. Click Setup. An black MS-DOS window appears with a message
indicating that you need 1 floppy diskettes.
4. Press the [ENTER] key.
A message appears prompting you to insert a blank floppy diskette.
5. Insert a floppy disk into the floppy disk drive.
6. Press the [ENTER] key. A message appears indicating that all
data on the disk will be erased.
7. Press the [y] key and then press the [ENTER] key.
The files are copied to the floppy diskette. If the procedure requires
more than one diskette, repeat steps 5 – 7 until you reach the end of the diskette set.
8. After all the files have been copied to the last floppy disk,
press the [ENTER] key and the MS-DOS window closes.

Install

1. Insert the first (or the only) disk of the set into the Floppy
drive.
2. Click Start, click Shutdown, click Restart, and then click OK.
Windows XP Users need only click restart.
3. Follow the on-screen instructions.





Hard Drive Installation (via WinZip) with Setup.exe File for A20-C800.exe

Download

1.Click Download Now, to download the file.
2.When the File Download window appears, click Save (Windows XP
users will click Save) this program to disk and click OK. The Save In:
window appears.
3.From the Save In: field, click the down arrow then click to
select Desktop and click Save. The file will download to your desktop.
4.If the Download Complete window appears, click Close. The file
icon appears on your desktop.

Install

1.Double-click the new icon on the desktop labeled A20-C800.exe.
2.The Self-Extracting window appears and prompts you to extract or
unzip to C:\DELL\DRIVERS\r42767. Write down this path so the executable (I.e.
Setup.exe) file can be found later.
3.The Self-Extractor window appears.
4.Click OK.
5.After completing the file extraction, if the Self-Extractor
window is still open, close it.
6.Click the Start button and then click Run.
7.Type C:\DELL\DRIVERS\r42767 in the Open textbox and then click OK.
8.Follow the on-screen installation instructions.






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