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 C600 System BIOS, A21
AUTO INSTALLED This file was automatically installed as part of a recent update. If you are experiencing any issues, you can manually download and reinstall.Latitude C500 / C600 FlashBIOS Version A21
To view all drivers for your Latitude C500, go to Drivers and downloads.
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C600_A21.TXT | 28.88 KB
This is a large file. Depending on your connection speed, it may take some time to download.
File Format:
A text file containing customer friendly fixes and enhancements information
File Name:
C600_A21.TXT
File Size:
28.88 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
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Fixes & Enhancements
The following updates were made to the A20 BIOS to create A21:
Issues Fixed:
1. Fixed issue in Windows 2000 where mild video corruption
is seen when using Fn+F7 with a full-screen DOS box open.
2. Fixed issue on Windows 98SE in which the OS may appear to hang
when the battery reaches 100% charge.
3. Fixed issue seen when using Safeguard Easy security software in
which a "No bootable devices" error is seen after entering
the correct password.
4. Fixed issue where user is not able to enter System Setup after
booting to a CD-ROM drive.
5. Fixed issue where "Time-of-Day" intermittently shows up as all
zeros.
6. Fixed issue in which Remote BIOS Update may fail to update the
BIOS.
7. Fixed issue in which ACPI OSes show one battery as fully drained
when two batteries are installed.
8. Fixed issue where batteries may stop charging if system isn't
rebooted after several days.
9. Fixed issue where System Setup takes 7 seconds to recognize a
new battery.
10. Fixed issue under XP where system resumes to CRT only when docked
and suspend in simul-mode.
11. Fixed issue where on battery resumes from hibernate the system
will message an error about an unsafe removal of the USB.
12. Fixed issue where system does not correctly detect the battery
when inserted and removed several times.
13. Fixed issue in which a system with a bootable CardBus NIC will not
perform a network boot while docked.
14. Fix problem that leads to intermittent hangs when playing DVDs
under Windows XP and Windows 2000.
15. Fixed issue on ACPI OSes do not always detect battery change.
16. Fixed issue seen on ACPI OSes in which the system loops on suspend
when a critically low battery is installed.
17. Fixed issue under ACPI OSes in which the battery
is reported as charging even if the charger is
disabled.
18. Fixed lock-ups seen when the BIOS password screen is repeatedly
aborted (ie wrong password entered) and the system re-suspends.
19. Fixed issue seen on ACPI OSes in which the system loops on suspend
when a critically low battery is installed.
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. Added support for newer LCD panels.
6. Updated ATI VBIOS to rev 4.096.
Read More
Issues Fixed:
1. Fixed issue in Windows 2000 where mild video corruption
is seen when using Fn+F7 with a full-screen DOS box open.
2. Fixed issue on Windows 98SE in which the OS may appear to hang
when the battery reaches 100% charge.
3. Fixed issue seen when using Safeguard Easy security software in
which a "No bootable devices" error is seen after entering
the correct password.
4. Fixed issue where user is not able to enter System Setup after
booting to a CD-ROM drive.
5. Fixed issue where "Time-of-Day" intermittently shows up as all
zeros.
6. Fixed issue in which Remote BIOS Update may fail to update the
BIOS.
7. Fixed issue in which ACPI OSes show one battery as fully drained
when two batteries are installed.
8. Fixed issue where batteries may stop charging if system isn't
rebooted after several days.
9. Fixed issue where System Setup takes 7 seconds to recognize a
new battery.
10. Fixed issue under XP where system resumes to CRT only when docked
and suspend in simul-mode.
11. Fixed issue where on battery resumes from hibernate the system
will message an error about an unsafe removal of the USB.
12. Fixed issue where system does not correctly detect the battery
when inserted and removed several times.
13. Fixed issue in which a system with a bootable CardBus NIC will not
perform a network boot while docked.
14. Fix problem that leads to intermittent hangs when playing DVDs
under Windows XP and Windows 2000.
15. Fixed issue on ACPI OSes do not always detect battery change.
16. Fixed issue seen on ACPI OSes in which the system loops on suspend
when a critically low battery is installed.
17. Fixed issue under ACPI OSes in which the battery
is reported as charging even if the charger is
disabled.
18. Fixed lock-ups seen when the BIOS password screen is repeatedly
aborted (ie wrong password entered) and the system re-suspends.
19. Fixed issue seen on ACPI OSes in which the system loops on suspend
when a critically low battery is installed.
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. Added support for newer LCD panels.
6. Updated ATI VBIOS to rev 4.096.
Version
A21, A21
Release date
12 Apr 2002
Download Type
System BIOS
Category
BIOS
Importance
OptionalDell 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:
One or more self extracting disk images inside of a self extracting zip
File Name:
C600-A21.exe
File Size:
506 KB
This is a large file. Depending on your connection speed, it may take some time to download.
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:
ZipPack External
File Name:
a21-c600.exe
File Size:
2.21 MB
This is a large file. Depending on your connection speed, it may take some time to download.
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:
Flash BIOS executable
File Name:
C600_A21.exe
File Size:
323.97 KB
This is a large file. Depending on your connection speed, it may take some time to download.
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
By downloading, you accept the terms of the Dell Software License Agreement.
Supported Operating Systems
BIOS
Looking for a different OS? View the list of Dell supported operating systems
Installation instructions
Floppy Disk Boot to Disk for C600-A21.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 HTML Pop-Up Window for
a21-c600.exe
Download
1.Click Download Now, to download the file.
2.When the File Download window appears, click Save this program to
disk (Windows XP users, click Save) 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
name icon appears on your desktop.
Install
1.Double-click the new icon on the desktop labeled a21-c600.exe.
The Self-Extractor window appears.
2.Click OK or Continue.
The Self-Extracting Driver Installation window appears and prompts to
extract files to C:\DELL\DRIVERS\R41499.
3.Leave all of the default settings and click Unzip or OK. If the
directory doesn't exist, you'll be prompted to create one. Click Yes. A
Self Extractor window appears and indicates C:\DELL\DRIVERS\R41499 files were
extracted.
4.Click OK.
Follow the on-screen installation instructions in the window.
HTML Pop-Up With Install Now Button
1.The Dell Software Installation Documentation window appears.
2.Click the Install Now button. A File Download window appears.
3.Click Run this program from its current location and click OK.
The Security Warning window appears.
4.Click Yes. The InstallShield Wizard window appears.
5.Follow the on-screen instructions.
Floppy Disk Boot to Disk for C600-A21.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 HTML Pop-Up Window for
a21-c600.exe
Download
1.Click Download Now, to download the file.
2.When the File Download window appears, click Save this program to
disk (Windows XP users, click Save) 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
name icon appears on your desktop.
Install
1.Double-click the new icon on the desktop labeled a21-c600.exe.
The Self-Extractor window appears.
2.Click OK or Continue.
The Self-Extracting Driver Installation window appears and prompts to
extract files to C:\DELL\DRIVERS\R41499.
3.Leave all of the default settings and click Unzip or OK. If the
directory doesn't exist, you'll be prompted to create one. Click Yes. A
Self Extractor window appears and indicates C:\DELL\DRIVERS\R41499 files were
extracted.
4.Click OK.
Follow the on-screen installation instructions in the window.
HTML Pop-Up With Install Now Button
1.The Dell Software Installation Documentation window appears.
2.Click the Install Now button. A File Download window appears.
3.Click Run this program from its current location and click OK.
The Security Warning window appears.
4.Click Yes. The InstallShield Wizard window appears.
5.Follow the on-screen instructions.
Need help with BIOS issues?
Find a solution in Dell's BIOS troubleshooting and usage guide.Drivers help and tutorials
For more downloads go to the Drivers and downloads.
For help on using the information on this page, please visit Driver Help and Tutorials.