What Can I Do About a Lost BIOS Password?

Table of Contents · Introduction · Award and AMI · The following methods to clear the bios password · References · Introduction · Award and AMI · The following methods to clear the bios password · References

Clear motherboard bios password

Right!

Table of Contents · Introduction · Award and AMI · The following methods to clear the bios password · References · Introduction · Award and AMI · The following methods to clear the bios password · References

Chinese name

Motherboard

Foreign name

bios

To really understand the BIOS, we must talk about Firmeare (firmware) and ROM (Read Only Memory) chips. Firmeare is a

bios interface

The software is completely different from the "software"-the program code that is solidified in the integrated circuit, and the function of the integrated circuit is determined by these programs. ROM is an integrated circuit block that can be read multiple times after writing to the firmware once (this is the "curing" process). It can be seen that ROM is just a carrier of Firmware, and what we usually call CMOS is the ROM chip that solidifies the firmware of the system motherboard.

Award and AMI are both

1. Discharge COME

2. Switch to MS-DOS mode, run Debug, and then you can make the following two modifications:

1)

Set up

debug

-o 70 2e (Enter)

-o 71 00 (Enter)

-o 70 2f (Enter)

-o 71 00 (Enter)

-q

Restart, you can enter CMOS to modify.

2)

debug

-o 70 16 (Enter)

-o 71 16 (Enter)

-q

Restart, the computer will prompt CMOS settings error, press DEL to enter CMOS SETUP

Some parameters have become the default values. After resetting the parameters, save the disk and exit the BIOS setup.

Once the computer forgets the BIOS password, it cannot enter the BIOS settings, but we can try to solve it by the following methods.

(1) You can try the common password first. For example, the common password for AMI BIOS is "AMI", there are many common passwords for AWORD BIOS, there may be "AWORD", "H996", "Syzx", "WANTGIRL", "AwordSW" Wait, please pay attention to the case when entering, but many new motherboards do not support universal passwords, or there are universal passwords but you have not found them, so universal passwords are not everything.

Setting 1

(2) If your computer can boot, but cannot enter the BIOS settings, you can use the following methods, but note that if you do not understand the following operations, do not try, honest and practical method (3): Computer The BIOS settings can be accessed and changed through the 70H and 71H ports. The easiest way is to clear them all, that is, they become the default settings. However, there is a condition that the computer can perform the following operations only after it has been started.

The following program can complete the clearing work of all computer CMOS:

For the removal of AWard:

C: \\> debug

-o 70 23

-o 71 34

-q

-q

For AMI:

C: \\> debug

-o 70 16 -o 70 10

carry out

-o 71 16 or -o 71 0

-q -q

For phonenix:

C: \\> debug

-o 70 ff

-o 71 17

-q

others:

C: \\> debug

-o 70 10 -o 70 17

-o 71 ff or -o 71 17

-q -q

Now, start the computer, you can enter the BIOS to perform some other settings. A few motherboards may not work this way.

(3) This method must be successful, the disadvantage is that the case must be opened. After opening the case, find the jumper to clear the CMOS content on the motherboard (refer to the manual of the motherboard), short it for 35 seconds, and then turn it on again. The CMOS content will be cleared to the factory settings. Be careful not to jumper for short circuit Keep plugging in, so you will not be able to set the BIOS.

ASCII Dafa

If you do nt want to download software, and you do nt want to open the case, or even change the hardware configuration, the following methods are believed to help you crack and recover the BIOS password:

1. Enter the MS-DOS environment, enter EDIT at the DOS prompt and press Enter (if you find that an error occurs when you press EDIT, it means that you do not have the file edit.com, please see the next method), enter:

ALT + 179 ALT + 55 ALT + 136

ALT + 216 ALT + 230

ALT + 112 ALT + 176 ALT + 32

ALT + 230 ALT + 113

ALT + 254 ALT + 195 ALT + 128

ALT + 251 ALT + 64

ALT + 117 ALT + 241 ALT + 195

Note: To enter the above data, first press the ALT key, then press the number keys in the numeric keyboard (pressing the row of number keys on the keyboard has no effect), release the ALT key after entering a number, then press Press the ALT key. During the operation, there will be a random character on the screen, we do not need to worry about it. Then select save in the file directory, save it as cmos.com, and then exit to the MS-DOS environment. Press to find the file cmos.com and see if it is 20 bytes. If it is not, it means that you made a mistake. Must be re-entered. After confirming, run cmos.com directly to clear all CMOS data (including password, of course).

2. This method can be completed directly in the MS-DOS environment. Enter in the MS-DOS environment:

COPY CON CMOS.COM

Then press Enter and continue typing:

ALT + 176 ALT + 17 ALT + 230 p ALT + 176 ALT + 20 ALT + 230 q ALT + 205

Then press "F6" and press Enter to save. After running cmos.com file, restart the computer.

Method to crack motherboard bios password:

1. If your computer can still enter the BIOS settings, but just want to know the BIOS password, it is very simple. The method is to enter the BIOS settings of the computer, then select the "Load Optimized Defaults" option, and then you will be prompted whether you want to restore the BIOS to the original Settings, we can choose OK (see the following prompt, press the upper Y key on the keyboard, which means Yes).

2. What should we do if we can no longer access the Bios interface?

There are also many methods. The easiest way is to download some Bios password removal tools on the Internet to achieve this. However, the BIOS password removal tools for different chip motherboards are different. You may wish to search online to find related tools to clear the Bios password. ^[1]