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12 June 2007

How to remove a BIOS password.

Posted by Jaisal Abdurrahman

Steps

1. If it is a desktop simply locate the CMOS battery, remove it and the CMOS password jumper on the motherboard (if present) leave unplugged and powered off for at least a minute. Put CMOS battery back in turn on and boot up.
2. Laptops can be trickier, especially if it's a newer model. If it has a security chip on the motherboard forget about it. You either have to physically remove the chip or contact the mfg for the "master" password.
3. If you can boot up off of a cd or floppy try any of these methods:
4. Create a Win98SE bootable media "or anything that lets you boot into MS-DOS" and boot off of it.
5. When the A:\> prompt appears type debug and press enter.
6. You will then only see a "-".
7. Type o 70 2E "include the spaces" and press Enter.
8. Type o 71 ff "include the spaces" and press Enter.
9. Type q and press Enter.
10. Here are a list of common mfg backdoor passwords:
11. AWARD BIOS
12. AWARD SW, AWARD_SW, Award SW, AWARD PW, _award, awkward, J64, j256, j262, j332, j322, 01322222, 589589, 589721, 595595, 598598, HLT, SER, SKY_FOX, aLLy, aLLY, Condo, CONCAT, TTPTHA, aPAf, HLT, KDD, ZBAAACA, ZAAADA, ZJAAADC, djonet, %øåñòü ïpîáåëîâ%, %äåâÿòü ïpîáåëîâ%
13. AMI BIOS
14. AMI, A.M.I., AMI SW, AMI_SW, BIOS, PASSWORD, HEWITT RAND, Oder
15. Other passwords you may try (for AMI/AWARD or other BIOSes) - LKWPETER, lkwpeter, BIOSTAR, biostar, BIOSSTAR, biosstar, ALFAROME, Syxz, Wodj


Tips

* Remember that passwords are Case Sensitive. The last two passwords in the AWARD BIOS list are in Russian.
* Sometimes the bios reset jumper has a "handle" and is colored a bright color to make it easy to locate. Also, look in your case near the bottom. If it is a manufactured computer then it probably came with a little sticker with the jumpers and the location of the reset jumper.


Warnings

* Don't just start pulling jumpers on the motherboard. Make sure you know where it was and in what position in case anything goes wrong put it back.
* If you turn your computer on and it makes strange noises / beeps, you should contact the vendor, manufacture, or a tech guy to fix it.

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