Hello i have been working on this dell latitude e6400 bios rev. but i can't locate the (24c02) eeprom. Can send me a photo of the location of the chip or where is locate the chip? thanks for your help

Machaka,
In order to reset your bios password you will need to contact Dell Support by phone. They will verify ownership and then provide you with bios reset information. Below are Dell support phone numbers in the US.
Dell Support Phone Numbers
http://dell.to/1Ww0gq7
Thank You,
Dell-Jesse L
Dell Social Media and Communities

For reseting BIOS, you should first try to remove CMOS battery. Put it back and BIOS reset is done. For location of CMOS battery, check laptop manual.

But first, you could try to perform factory reset on BIOS. You can access BIOS by pressing F2 during startup.

Hello Gideon,
That is how the bios chip looks like.8 legged chip.hope that helps.

explain the issue in detail

Hello, you can download this tool here:

http://www.cgsecurity.org/wiki/CmosPwd

Dell

The official method is to contact Dell Technical Support. Dell Technical Support will request the Service Tag and Express Service Code from the bottom of the Latitude. If the current user is not the original Latitude owner, Dell will transfer the used Latitude's registration from the original owner with only the Service Tag and Express Service Code from the tag on the laptop.

• Dell Inspiron 5100: eeprom 93lc46, password in scan code at 0x310
• Dell Inspiron 7500: eeprom 24c164
• Dell Inspiron 8100: eeprom 24c02
• Dell Latitude C600: eeprom 24c02, password in scan code at 0x00, 0x10 and 0x90
• Dell Latitude C610: eeprom 24c02, password in scan code at 0x00, 0x10, 0x80 and 0x90
• Dell Latitude C640: eeprom 24c04, password in scan code at 0x100 and 0x180
• Dell Latitude CPI: eeprom 24c02, password in scan code at 0x00, 0x10, 0x80
• Dell D600: eeprom 24c04, password in scan code at 0x110
• Dell Optiplex: Remove the PSWD jumper
• For most Dell Dimension desktops, the steps to reset a BIOS password and clear all CMOS settings are:
  • Locate the 3-pin CMOS password reset jumper on the system board.
  • Remove the jumper plug from pins 1 and 2.
  • Place the jumper plug on pins 2 and 3 and wait approximately 5 seconds.
  • Replace the jumper plug on pins 1 and 2.

Try the backdoor password: Dell

The another method is: by Using the Motherboard Jumper: In most motherboards CMOS battery is soldered, which makes it difficult to remove the battery. In this case we use another method.
Almost all motherboards contain a jumper that can clear all CMOS settings along with the BIOS password. The location of this jumper varies depending upon the motherboard brand. You should read your motherboard manual to check its location. If you don't have the manual then look for the jumpers near the CMOS battery. Most of the manufacturer label the jumper as CLR, CLEAR, CLEAR CMOS, etc.
When you find the jumper, look carefully. There will be 3 pins and the jumper will be joining the center pin to either left or right pin. What you need to do, is remove the jumper and join the center pin to the opposite pin. e.g. if the jumper joins center pin to left pin, then remove it and join center pin to right pin. Now wait for a few seconds and then again remove the jumper and join the center pin to left pin.
Make sure to turn the PC off, and remove the battery and power cord
( if it is a laptop ) before you continue.

Here is a picture how it looks like:



The default setting is:pin 1 to 2, to clear cmos: 2 to 3.

Best of luck :-)

Yes this model Dell has a built-in 0.3 megapixel WEBcam. It is located at the top of the screen.

just open the back cover of the laptop & Remove & after 3-4 seconds Reinsert the battery of Bios

MickeyMe43 I have the same problem, whit the same PC, i just want to know if you can solve your ptoblem and helpme solve mine...
thanks

email [email protected]

I have just done this. One needs to dismantle the laptop first. Solder a push button switch with extended wires across pins 4&5 of the serial eeprom 24c02. Then reconnect the screen, keyboard & a/c power pack. with a tooth pick press power on switch whilst holding push button on. When the factory mode screen comes on release the push button. Next go to bios setup F2 and ALT-p to the password page. Now enter your new password this will overwrite the old pass word. My approach is slightly different to this following method as it is les likely to brick the laptop.
http://www.archive.org/web/2003110302606

try reading this article
http://www.computerhope.com/issues/ch000235.htm