How to Reset BIOS Password?

There are two passwords in BIOS. One is start up password, the other is BIOS setting password. If you have forgotten the start up password that means you cannot open computer at all. Then the first method is the only thing you can do. Other methods can use to clear setting password.

==?:Motherboard Battery Discharge==
The common way to reset start up password is discharge Motherboard Battery. Most of the current motherboard BIOS is using the button batteries to provide electric power. That means if there is no electricity, the information it contains will be lost. When it’s on power again, BIOS will set back to its original state, of course, there will be no BIOS passwords. But you will lose your setting at the same time.

What we need to do is to power off computer, open the computer box, and then unplug the power plug of the computer to make sure that it is no electricity at all. Then locate the white silver button battery on the motherboard. Remove the battery carefully. Perhaps 30 seconds later, put back the battery.

After put back the computer box then power on, the system will prompt “CMOS Checksum Error-Defaults Loaded”. That means CMOS errors detected during inspections, had been included in the system default, BIOS password cracking success!

On some motherboards, the battery is soldered to the motherboard, making it difficult to remove. If this is the case, you have another alternative. Somewhere on the motherboard you should find a jumper that will clear the BIOS password. If you have the motherboard documentation, you will know where that jumper is. If not, the jumper may be labeled on the motherboard. If you are not fortunate enough for either of these to be the case, you may be able to guess which jumper is the correct jumper. This jumper is usually standing alone near the battery. If you cannot locate this jumper, you might short both of the points where the battery connects to the motherboard.

==? : Backdoor BIOS Password==
Each motherboard manufacturer has set a backdoor password in order to facilitate the provision of technical support. The backdoor password is a BIOS password that works, no matter what the user sets the BIOS password to. These passwords are typically used for testing and maintenance. Manufacturers typically change the backdoor BIOS passwords from time to time.

AMI Backdoor BIOS Passwords
Reported AMI backdoor BIOS passwords include A.M.I., AAAMMMIII, AMI?SW , AMI_SW, BIOS, CONDO, HEWITT RAND, LKWPETER, MI, and PASSWORD.

Award Backdoor BIOS Passwords
One reported Award backdoor BIOS password is eight spaces. Other reported Award backdoor BIOS passwords include 01322222, 589589, 589721, 595595, 598598 , ALFAROME, ALLY, ALLy, aLLY, aLLy, aPAf, award, AWARD PW, AWARD SW, AWARD?SW, AWARD_PW, AWARD_SW, AWKWARD, awkward, BIOSTAR, CONCAT, CONDO, Condo, condo, d8on, djonet, HLT, J256, J262, j262, j322, j332, J64, KDD, LKWPETER, Lkwpeter, PINT, pint, SER, SKY_FOX, SYXZ, syxz, TTPTHA, ZAAAADA, ZAAADA, ZBAAACA, and ZJAAADC.

Phoenix Backdoor BIOS Passwords
Reported Phoenix BIOS backdoor passwords include BIOS, CMOS, phoenix, and PHOENIX.
Backdoor BIOS Passwords from Other Manufacturers
Reported BIOS backdoor passwords for other manufacturers include:

Manufacturer BIOS Password VOBIS & IBM merlin Dell Dell Biostar Biostar Compaq Compaq Enox xo11nE Epox central Freetech Posterie IWill iwill Jetway spooml Packard Bell bell9 QDI QDI Siemens SKY_FOX SOYO SY_MB TMC BIGO Toshiba Toshiba

Remember that what you see listed may not be the actual backdoor BIOS password, this BIOS password may simply have the same checksum as the real backdoor BIOS password. For Award BIOS, this checksum is stored at F000:EC60.

==?: Software Crack==
There are a lot softwares to test systems or start up password, but they need to run on Windows. So it is only used to reset BIOS setting password.

!BIOS will recover the BIOS password for most common BIOS versions, including IBM, American Megatrends Inc, Award and Phoenix.

CmosPwd will recover the BIOS password for the following BIOS versions:

•ACER/IBM BIOS
•AMI BIOS
•AMI WinBIOS 2.5
•Award 4.5x/4.6x/6.0
•Compaq (1992)
•Compaq (New version)
•IBM (PS/2, Activa, Thinkpad)
•Packard Bell
•Phoenix 1.00.09.AC0 (1994), a486 1.03, 1.04, 1.10 A03, 4.05 rev 1.02.943, 4.06 rev 1.13.1107
•Phoenix 4 release 6 (User)
•Gateway Solo – Phoenix 4.0 release 6
•Toshiba
•Zenith AMI

If all else fails, you might be going to lose some money for technician.
But they will use these same methods, try hard by yourself.

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