A program for restoring BIOS on a laptop. Reasons for resetting the BIOS


BIOS is a firmware stored on a chip on the motherboard that is responsible for starting, testing, and configuring hardware at boot.

If for some reason the BIOS is damaged or does not match the board, the computer either experiences unstable operation or does not boot at all. And the problem arises of how to restore the BIOS.

Bios recovery methods

If the operating system boots, but the computer does not work correctly, you can try flashing the BIOS from DOS or Windows:

  • Download from the Internet from the manufacturer's website the BIOS for your board and the Phoenix or InsydeH2O flash program.
  • Make sure that the computer is connected to the network via an uninterruptible power supply.
  • If you decide to reflash from Windows, you need to turn off the Internet, network connection, unload all unnecessary programs and disable the antivirus.
  • Dissolve the BIOS archive and run the file with bat extension. The program will flash the BIOS and restart the computer.

If your computer won't boot:

  • If the motherboard has the function disaster recovery If there is a faulty BIOS, there is a Flash Recovery jumper on it. To restore the BIOS it must be set to Recovery Mode, install a special one in the drive boot disk which comes with motherboard, and turn on the computer. The program will rewrite the BIOS to the original version. After a few minutes, you can turn off the computer and return the jumper to its original position.
  • If the board does not have a BIOS recovery function, you can try flashing it on another motherboard that supports this type of BIOS. To do this on work pay Carefully remove the BIOS using a flat screwdriver and install it back so that its legs only touch the connectors. The computer boots into DOS. After booting, the working BIOS is removed, and the faulty one is installed in its place and the BIOS update program is launched. After the flashing is completed, you can turn off the computer and remove the flashed BIOS from the board. The method of flashing the BIOS in another motherboard works, but it is dangerous because you can damage the BIOS itself or the motherboard. Therefore, we strongly recommend that in this case you contact a repair shop, where the BIOS will be flashed using a special programmer.

The problem is how to restore Laptop BIOS solved in approximately the same way.

  • From another work computer, go online and download the program to create rescue disk Crysis disc. The easiest way to download these programs is from the website soft.ru. Take a flash drive, format it in fat32, write a program onto it and download a Bios suitable for your board from the Internet.
  • Remove the battery from the laptop. Insert the flash drive into the USB connector. While holding down the Fn and Esc keys, turn on the power to the laptop and turn it on. Restoring the BIOS will only take a few minutes and the laptop will reboot. After this, the battery can be returned to its place.

If you experimented with BIOS settings and your computer began to work incorrectly, you need to return previous settings. How to restore BIOS settings:

  • Restart your computer and go into BIOS. In the exit tab, find the Load Setup Defaults item, which means restoring the default settings and click on it. After this, the computer will reboot with the settings already restored. However, this method does not always work.
  • If you were unable to restore the settings programmatically, you need to turn off the computer, unscrew the screws and remove the side cover. On the motherboard you need to find a battery that is responsible for saving BIOS settings. If there is a jumper next to it, to reset the settings, put it in a different position.
  • Instead of a jumper, there may be a button, next to which there should be the inscription CMOS. In this case, to reset the settings, simply press the button.
  • If there is no jumper or button, you should remove the battery itself for a while. To do this, you need to press the lock with a screwdriver, after which the battery can be easily pulled out. After a few minutes, you can put the battery back and boot the computer. BIOS settings will be standard.

Even the most insignificant error in the process of working with BIOS can lead to termination of work motherboard. For example, if, while updating the Bios, your computer was de-energized for some reason or the downloaded version does not meet the requirements, then the PC’s motherboard will stop functioning. But it also happens that even after a successful update, the computer is unstable due to errors contained in new version firmware. In this case, the best option is to return the system to normal state is to restore the old BIOS.

Before moving on to considering recovery methods, it is necessary to understand what it is and what the principles of its operation are. The operation of the Basic Input-Output System is similar to the operation of a conventional universal driver, which ensures communication between hardware and software, and also allows the operating system to “communicate” normally with all PC components. In addition, it is the BIOS that, when the computer boots, checks, initializes and configures the existing equipment. The firmware is carried out on a special chip on the motherboard with flash memory. New firmware versions are released to improve the functioning of motherboards, improve their compatibility with new equipment, and also to eliminate various operating errors. But you shouldn’t overuse the update if the “mother” works great with the installed version. The update needs to be done only if it is necessary to eliminate shortcomings in the system itself, or to install a new processor.

Now let's move directly to the methods of restoring the BIOS. ASUS, one of the leading developers of Bios firmware codes, offers all users of their products a small built-in ASUS utility Crash Free BIOS. With the help of this extraordinary program, the user can easily roll back the installed version to the previous one if any problems arise in the operation of the new firmware. The product perfectly recognizes firmware files from flash media, disks or floppy disks and automatically uploads and replaces them into the chip. To restore the old BIOS version in this way, you must first save the utility and the old firmware file to any convenient removable media. If you did not have time to prepare all this before the update, then you can record the required version and utility on any other working PC. By installing the media and turning on the computer and booting the system, the utility will restore the Basic Input-Output System.

Most BIOS chips have a CMOS module, which is a battery-dependent memory component. All hardware parameters that Bios accesses every time you turn it on personal computer, are written specifically to CMOS. If, after updating the firmware version, you notice that the computer is unstable, then it would be logical to clear the CMOS, thereby resetting the settings to the factory settings.

If after the update the computer does not boot, you need to enter the BIOS settings (in the first seconds of boot, you usually need to press the Del button, but other options are possible). After entering the settings menu, you need to find and select the Fail-Safe Defaults or Load Setup Defaults option and press Enter. This will clear all options. It happens that the machine does not boot at all and you cannot enter the options menu. In this case, the CMOS reset is performed in hardware. To do this, you need to find the switch on the motherboard and move it to the Clear CMOS position for 10-20 seconds. Some reset the settings by simply removing the battery itself for a few seconds.

To avoid possible problems It is recommended to use another utility from ASUS called ASUS BIOS Updater. This application creates backup copy installed version Bios before starting its update. In order to make a backup copy, you need to insert a flash drive formatted in the FAT 32 system, with the new firmware and utility file located on it, into a free port, in optical drive Install a boot disk with FreeDOS OS and turn on the computer. When the machine starts to boot, press the F8 button and select DVDROM from the displayed menu. After the system has booted, you must select command line letter assigned to the flash drive, for example “e:” and press Enter button. After these steps, you can create a file in which the old BIOS version will be saved. To do this, you need to type bupdater /o filename.rom, where you must correctly specify the name of the firmware file.

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How to restore BIOS settings?

Have you set a BIOS password, forgotten it and don’t know how to recover it? Or did you mess up the settings and the computer behaves “inappropriately”? Then you should restore the BIOS system settings, and this is quite easy to do - you will learn about this today on the website undelete-file.ru.

To bypass the login password and find out how to restore bios settings, you need to do a few things: simple actions. Ways to restore the BIOS system to factory settings:

1. Restoring settings can be done directly through bios, namely:

  • go to Bios and go to the “Exit” tab (exit)
  • in the parameters, select “Load Setup Defaults” (loading default parameters). After restarting the computer, the settings should be restored, but this method may not always help, then look at the next one...

2. You can reset Bios settings by erasing the so-called “cold memory”; to do this, you need to turn off the PC and unplug it from the outlet. Then remove the side cover from system unit to access the motherboard. Look carefully at the “insides” of the computer and find a coin cell battery or accumulator on the board.

The battery helps store settings, therefore, if you remove the battery from the PC, the saved settings will be deleted, that is, they will be reset and the bios system will return to its original state. After removing this “tablet” you need to wait 20-25 seconds, then insert it into place (just do not reverse the polarity) and turn on the computer.

3. It happens that there is a button near the battery that says CMOS. Its role is the same as removing the battery - restoring the BIOS to factory settings.

After completing these steps, the BIOS system settings will return to factory settings, now you know what methods you can restore Bios settings! And to restore deleted information on your computer after formatting or deleting past the recycle bin, we recommend using free utilities on restoration deleted files and applications for returning deleted files to Android phones.

Good luck to everyone and keep your computer running smoothly!

Just don't tell anyone:

Source: undelete-file.ru

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How to restore BIOS settings to default

How to restore BIOS settings to default? Or, as experts say, “how to reset the BIOS”?

How to reset/restore BIOS settings

If your computer boots and allows you to enter the BIOS, then restoring the default settings is easy: to do this, you need to enter the BIOS, select LOAD SETUP DEFAULTS or LOAD FAIL-SAFE DEFAULTS, then select SAVE AND EXIT SETUP and, if asked for confirmation, select Y ( yes). After this, the system will reboot and ALL BIOS settings will be restored to their original (factory) settings. See pictures below.


If your computer does not start and it is not possible to enter the BIOS, you need to reset the BIOS using hardware.

This situation may arise after setting incorrect values ​​for critical system parameters: processor frequency, system bus, RAM timings and some others. Most often, the system does not start after inexperienced user tried to overclock the system incorrectly :)

So, hard reset BIOS:

  1. Turn off the computer
  2. Removing the cover of the system unit
  3. We are looking for CLR_CMOS contacts on the motherboard. They look like three needles, two of which are connected by a jumper, and are usually located near the BIOS battery.
  4. We remove the jumper and install it on other contacts so that the middle contact now closes with the other contact.
  5. Turn on the computer

If after this procedure the computer still does not start, try taking additional steps:

  1. Turn off your computer.
  2. Disconnect the 220 V power cord from the back of the system unit.
  3. With the 220 V power cable disconnected, press the power button on the system unit. This is needed for complete discharge capacitors.
  4. Take out the BIOS battery (battery type is CR2032) and insert it with the other side, i.e. "wrong".
  5. Wait about 10 seconds, then remove the battery again and insert it the correct way around. Turn on your computer.

If after this the computer still does not start, try replacing the CR2032 battery

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demand Super moderator Messages: 4130 Registered: Oct 13, 2011, 4:00 pm Reputation: 74 Thank you: 2454 times

How to recover a damaged BIOS

Even the most minor error while working with the BIOS can lead to the motherboard stopping working. For example, if, while updating the BIOS, your computer was de-energized for some reason or the downloaded version does not meet the requirements, the PC motherboard will stop functioning. But it also happens that even after a successful BIOS updates The computer is unstable due to errors contained in the new firmware version. In this case, the best option to return the system to normal is to restore the old BIOS.

Before we move on to considering BIOS recovery methods, it is necessary to understand what it is and what the principles of its operation are. The operation of the BIOS (basic input-output system) is similar to the operation of a conventional universal driver, which ensures communication between hardware and software, and also allows the operating system to “communicate” normally with all PC components. In addition, it is the BIOS that checks, initializes and configures existing hardware when the computer boots. The BIOS software is flashed onto a special chip on the motherboard with flash memory. New versions of BIOS firmware are released to improve the functioning of motherboards, improve their compatibility with new equipment, and also to eliminate various operating errors. But you shouldn’t overuse the BIOS update if the motherboard works fine with the installed version. The update needs to be done only if it is necessary to eliminate shortcomings in the system itself, or to install a new processor.

Now let's move directly to the methods of restoring the BIOS. ASUS, one of the leading developers of BIOS firmware codes, offers all users of their products a small built-in ASUS CrashFree BIOS utility. With the help of this extraordinary program, the user can easily roll back the installed BIOS version to the previous one if any problems arise in the operation of the new firmware. This utility perfectly recognizes firmware files from flash media, disks or floppy disks and automatically uploads and replaces them into the chip. To restore the old BIOS version in this way, you must first save the utility and the old firmware file to any convenient removable media. If you did not have time to prepare all this before updating the firmware, then you can record the required version and utility on any other working PC. By installing the media and turning on the computer and booting the system, the ASUS CrashFree BIOS utility will restore the BIOS.

Most BIOS chips have a CMOS module, which is a battery-dependent memory component. All hardware parameters that the BIOS accesses every time the personal computer is turned on are written to CMOS. If, after updating the firmware version, you notice that the computer is unstable, then it would be logical to clear the CMOS, thereby resetting the settings to the factory settings.


If after the update the computer does not boot, you need to enter the BIOS settings (in the first seconds of boot, you usually need to press the Del button, but other options are possible). After entering the menu BIOS settings you need to find and select the Fail-Safe Defaults or Load Setup Defaults option and press Enter. This will reset all settings. It happens that the computer does not boot at all and you cannot enter the BIOS settings menu. In this case, the CMOS reset is performed in hardware. To do this, you need to find a switch on the motherboard and move it to the Clear CMOS position for 10-20 seconds. Some reset the settings by simply removing the battery itself for a few seconds.

To avoid possible problems, it is recommended to use another utility from ASUS called ASUS BIOS Updater. This utility creates a backup copy of the installed BIOS version before starting its update. In order to make a BIOS backup copy, you need to insert a flash drive formatted in FAT 32 with the new firmware and ASUS BIOS Updater utility file on it, insert it into a free port, install a boot disk with FreeDOS OS into the optical drive and turn on the computer. When the computer starts to boot, press the F8 button and select CDROM from the displayed menu. After the system has booted, you need to select the letter assigned to the flash drive in the command line, for example “E:” and press the Enter button. After these steps, you can create a file in which the old BIOS version will be saved. To do this, you need to type bupdater /o filename.rom, where you must correctly specify the name of the firmware file.

There should be 1 (one) message on the forum The author of demand was thanked for this message (3 in total): gesha vartur12 (05 Jul 2013, 22:21) tyha (20 Mar 2016, 03:19) kpot57 VIP Messages: 668 Registered: 06 Aug 2012, 11:33 Reputation: 6 Thank you: 65 times

Post by kpot57 » Mar 19, 2016, 5:02 pm #7

But I got into the BIOS and I don’t know what I could do there? And then my computer stopped seeing my disks? I thought I’d change my mother, you still don’t want to see them?

Ipkirill9 Super moderator Messages: 153 Registered: 08 Sep 2015, 20:13 Reputation: 24 Thank you: 40 times

Post by ipkirill9 » Mar 20, 2016, 7:01 pm #10

And why do his people sew so often? For me, in the life of a PC, only two flashings are needed (and the second is not a fact, Windows 10 bindings make themselves felt.): 1) Latest update. 2) SLIC/MSDM. That's it.

Why does the bios need to be flashed?

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Ways to reset BIOS settings to factory defaults

We switched something wrong in the BIOS or UEFI and as a result, problems arose in the operation of the computer. You messed up something in the settings and don’t know how to return them to default. Or maybe the computer does not start at all after changes to the BIOS. Let's look at how you can reset the settings to default values. BIOS have a direct impact on the operation of the computer and its individual components. Sometimes there are times when you need to change something - switch the drive operating mode, adjust processor settings, and the like. It may happen that we configure something incorrectly and don’t know how to reset it to its original values. It even happens that the computer may not boot at all - what to do in this situation?

Method 1: Reset via BIOS/UEFI

The best option is to reset the BIOS to factory settings. Then all the changes you made will be reset and everything will work as before. There are several ways to do this. If the computer turns on, then you can go into the BIOS and restore the default settings. Otherwise, if you cannot enter the BIOS, you will have to edit it manually.

Introduction. BOOTBLOCK BIOS.
Most BIOS firmwares that are common today can be called “BOOT BLOCK Firmware” (BOOTBLOCK BIOS). Such firmware is fundamentally different from earlier BIOSes in that it contains additional section, called BOOT BLOCK. Thus, the firmware consists of two parts - the above-mentioned block and the main code (system area - SYSTEM BLOCK). BOOT BLOCK uses the first 24 kilobytes of the memory chip and contains information and instructions so that it is possible to initialize the minimum critical system devices such as disk drive floppy disks and (only some ISA card models). The BOOT BLOCK area in the BIOS chip is read-only and can be reprogrammed when help flash utilities only using special commands. This area can only be present in BIOSes that have a size of 256 kilobytes (2 megabits) and it allows you to restore a BIOS damaged during the update process. In a one-megabit BIOS, there is simply no place for such an area, so it can only be restored using the “Hot Swap” procedure (we will look at it below) or by flashing firmware on a chip programmer. The procedure for flashing the BIOS (the operation of the flash program) can be divided into several stages:

  1. Loading the program and identifying the flash memory chip (size and programming voltage)
  2. Board chipset and type identification
  3. Checking the checksum of the new firmware.
  4. Erasing the main area in the flash BIOS chip (filling with zeros). BOOT BLOCK is not affected.
  5. Overwriting the main area with new BIOS code.
  6. Load BIOS variables to default values ​​and reboot the computer.
If a failure occurs during the first 3 stages, then the program may display an error message and exit, it may simply freeze or otherwise crash, but this will not damage the BIOS. If a failure occurs in the 4th or 5th stages, the information in the BIOS system area will be corrupted and the computer will not be able to start normally. You will be able to turn on the computer's power, but normal procedure loading will not occur. If your computer has AWARD BIOS installed, the following message may appear on the screen:
AWARD BootBlock BIOS v x.xx
CMOS checksum error
At this point, the system will attempt to boot from the system floppy disk to attempt to restore the BIOS. Below we will look at BIOS recovery methods.
BIOS recovery methods. There are several methods:
  1. Using BOOT BLOCK to flash the BIOS
  2. Using the Hot Swap Method
  3. Firmware of the microcircuit on the programmer.
  4. Purchasing a new microcircuit with the required firmware.
Here we will look at the first two methods. To start - recovery AMI BOOTBLOCK BIOS.
 We already know that Board BIOS that have a BOOTBLOCK section can be recovered from a floppy disk if the BOOTBLOCK itself is not damaged. When booting computers that have a damaged AMI BIOS, nothing will be displayed on the screen, however, the indicator on the disk drive (FDD) will light up and the system will attempt to read from the disk. The BIOS recovery procedure loaded from BOOT BLOCK will attempt to find a file on the floppy disk called AMIBOOT.ROM, and if such a file is found, it will be written to the BIOS system area. It is important that your computer has a working system speaker, connected to , because at the end of the BIOS recovery procedure, the system will report this with four sound signals. Thus, to restore a damaged AMI BIOS, you need to do the following:
  1. Format a reliable (high-quality) 1.44 MB floppy disk
  2. Copy the BIOS firmware suitable for your board onto it. Many firmware available on the Internet are posted there in archived form. Naturally, you need to unpack the archive and copy the unpacked firmware.
  3. Rename this file to AMIBOOT.ROM
  4. Turn on the computer and insert the prepared floppy disk into drive A:
  5. After approximately 3-4 minutes, the system should notify you with four beeps that the firmware procedure is complete. Remove the floppy disk. The computer should restart.
The computer should now boot normally. If normal loading does not happen, try flashing the BIOS again, perhaps with a different firmware for your board. If nothing has changed, read the “Problem Solving” section below.
Recovering AWARD BOOTBLOCK BIOS.
 In the case of AWARD BIOS, the procedure is similar, but there are differences. You will need to prepare a working floppy disk with BIOS firmware in *.BIN format, write the firmware program and the AUTOEXEC.BAT file to the diskette. AWARD BOOT BLOCK cannot automatically restore the system BIOS area, so you will need to write BIOS flashing commands to the AUTOEXEC.BAT file. The system will run this BAT file and thus flash the system BIOS area. The recovery procedure looks like this:
  1. Create a boot floppy disk. To do this, it is best to give from the DOS command line FORMAT command A: /S The /S key means that the data will be copied to the floppy disk. system files. If you use WindowsME, WinNT, Win2000 and older systems, this method of creating a floppy disk is not available to you. Go to www.bootdisk.com and download a boot disk image from there.
  2. Copy to floppy disk required file BIOS. Many firmware available on the Internet are posted there in archived form. Naturally, you need to unpack the archive and copy the unpacked firmware. Copy the firmware program there.
  3. Using a text editor (for example, Notepad) or any editor built into DOS shells (Norton commander, Dos navigator), create the file AUTOEXEC.BAT on a floppy disk. The file should be in text format, and its name must correspond exactly to what is indicated, without the slightest variation. If you use Notepad? then you may need to change the file extension from TXT to BAT
  4. In the same text editor, paste and save as a file following lines:
    @ECHO OFF
    @AWDFLASHBIOSFILE.BIN /py
    The /py key is needed so that the firmware procedure starts without user intervention. The names AWDFLASH and BIOSFILE.BIN are given here as an example; they should be replaced with the name of the firmware program and the name of the firmware file. It is also advisable to check whether your flashing program with the /py key actually starts the automatic flashing procedure, since despite the standards, the commands may differ. To check, run your flashing program with the /? key. For example, like this: AWDFLASH /?
  5. Insert the prepared floppy disk into the drive and turn on the computer. The computer should boot from the floppy disk, run the above commands and restore the BIOS. If the procedure went well, the computer will reboot and start up as normal. The floppy disk must be removed from the drive, of course. If the BIOS recovery does not occur, read the "Troubleshooting" section below.
BIOS recovery method "Hot swap"
 This technique involves removing the BIOS chip from one board (from a board that does not work due to unsuccessful flashing) and installing this chip into a working board while it is functioning (in the standby state). This technique is very risky, since you will have to remove the normal BIOS chip and insert a chip with damaged firmware while the board is under power. Moreover, you risk damaging not only both microcircuits, but also, and in particularly unfortunate cases, the entire system. There is also a risk of electrical shock to the operator performing this procedure.
This procedure requires that you have two computers with the same BIOS types(AWARD or AMI) and same types their microcircuits. It consists of the following:
  1. Start the working computer that you will use for recovery and boot into the command DOS line(DOS prompt). Make sure that you do not have any resident programs loaded.
  2. Carefully remove the BIOS chip from the running machine. Remember how it was installed there so that you can install it the same way later. Beforehand, you can practice removing the microcircuit with the computer turned off so that the procedure goes quickly and confidently. Try to ensure that all pins of the microcircuit are disconnected from the connector at the same time.
  3. Insert the chip containing the damaged BIOS into a working computer. Make sure that the key on the chip matches the key on the connector to prevent incorrect installation of the chips! If you insert the chip incorrectly, it will definitely be damaged when you turn on the computer! Again, practice doing this in advance, with the machine turned off. Try to ensure that all pins of the chip are inserted at the same time.
  4. Run the BIOS programming utility and flash the chip with the correct firmware required for the first (in this moment non-working) computer. If you receive a warning about a mismatch between the chipset type and/or board name, ignore it. If the flashing program does not allow you to ignore this warning, and this is an AMI BIOS, then run the program with the /x key to enter GUI programs and perform the firmware manually. In other cases, try running the flashing program with the /? key. and find out which key can help you ignore the warnings.
  5. After flashing the BIOS, turn off the computer, carefully remove the programmed chip and place each of the chips in its place. Make sure that the key on the chip matches the key on the connector to prevent incorrect installation of the chips! If you insert the chip incorrectly, it will definitely be damaged when you turn on the computer!
  6. Turn on your computer. If the procedure went well, it will start up as usual. If the BIOS recovery does not occur, read the "Troubleshooting" section below.
Solving problems that arise when restoring the BIOS.
 Problem: After following these instructions, the system still does not boot normally and all it does is access the drive.
Possible Solution: This situation means that the firmware procedure was completed unsuccessfully. The most likely reasons are two: incorrectly selected firmware or faulty chip BIOS. In the first case, you can try repeating the BIOS recovery procedure. In the second case, you will have to purchase a new microcircuit and flash it on the programmer.
Problem: After rebooting the computer, the message "CMOS Checksum bad" and "Press F1 to Enter Setup"
Possible Solution: This is generally not a problem. The thing is that after the update BIOS values The variables set in BIOS Setup are arbitrary. You need to go into BIOS Setup, load the default variables (load system defaults, load optimal settings commands and the like) and then, if necessary, perform fine tuning BIOS "to suit your needs".
Problem: During the AWARD BIOS recovery process, the system starts reading from the floppy disk, then stops and nothing else happens. When you restart the computer, the situation repeats.
Possible Solution: This situation most likely indicates a problem with the floppy disk or drive. Verify on another computer that the disk is bootable, that it contains the AUTOEXEC.BAT file, the BIOS programming utility and the firmware itself, and that the AUTOEXEC file has the correct contents. If you can see the boot process on the screen and the system boots into the DOS prompt, then try manually entering the BIOS firmware commands and watch for error messages. Also try using a different flash utility and a different BIOS flash file. If the floppy disk is completely intact, try replacing the disk drive.

Instructions

Turn on your computer and immediately after the motherboard manufacturer logo appears on the black screen, click Delete button. Alternatively, a summary may appear instead of the logo text information about the computer, for example, processor type and model, number random access memory and so on. Proceed in the same way - press Delete several times.

Some models motherboards the button to enter the BIOS setup is different, it can be F2, F10 - usually it is on the bottom line of the screen. Therefore, carefully monitor the inscriptions on the screen and follow the manufacturer's instructions. After pressing the correct key, a window with the main system menu lines will appear on the monitor settings computer.

Press the arrows “up” and “down” or “right-left” to move through the items BIOS menu. The structure of the items varies depending on different manufacturers motherboards and firmware, so it is impossible to pinpoint the exact location desired menu.

Look for a message similar to Load fail safe defaults or simply Default settings. When you find the item you need, press the Enter button to reset settings V initial position.

Then select the Save&Exit menu and press the enter key again. Confirm your choice by pressing the button that displays . After a reboot, all parameters will be reset to their original position.

For cases when it didn't work automatic protection from incorrect settings and the computer refuses to enter the BIOS by pressing a button on the keyboard, there is another, more radical way. Open the side wall of the system unit and find a large round battery. Pull it out of the socket in the motherboard and leave everything for 15 minutes. After that, put the battery back into the slot and turn on the computer. The settings will return to standard.

Video on the topic

Sources:

  • how to make a standard setting
  • BIOS recovery

There are situations when, as a result of improper operation of the BIOS, the computer stops starting. In such cases, to restore normal work computer needs to be reset settings Default BIOS. Return to standard settings Bios is possible even in cases where the computer does not start at all and you do not have the opportunity to do it in a systemic manner.

You will need

Instructions

Turn on the computer and immediately after that press the Del key several times. This way you will get to Bios. In any version of Bios there is an item with which you can reset settings default. This item is called Load Optimal Defaults. Select it and press Enter. After this, a dialog box will appear asking you to save the settings. Select Save And Exit. After this, the computer will reboot and that’s it settings will be returned to standard.

Download the firmware and install software for flashing. You can find these components on your phone manufacturer's fan sites. Install only the one firmware, which is designated as factory. Make sure your phone battery is fully charged. Do not disconnect the phone under any circumstances until a message appears indicating that the software update is complete. Do not use your phone or turn off your computer until the operation is completed. Try to use only the software that is available, otherwise it is advisable to contact a specialized cell phone repair service.

Sources:

  • How to return the “old” Android firmware?

Before loading the main operating system, the computer is controlled basic system input/output - BIOS. Its firmware contains protocols for checking the functionality of devices necessary to get started, as well as a procedure for initiating loading of the main OS. The computer user can make changes to these procedures, and it often happens that the results of such intervention may need to be eliminated by returning the standard factory settings BIOS settings.

Instructions

Remove the rechargeable battery installed in the motherboard that provides power to the chip that stores a record of the current BIOS settings. This is the most radical and reliable method, but it requires physical rather than software manipulations, so first you will have to shut down the operating system, disconnect the computer from the network, remove sidebar system unit and find this same battery (“tablet”) on the motherboard. Do not rush to install the battery back - for greater confidence, it is usually recommended to wait about five minutes, and then do all the listed manipulations in the reverse order.

Return to factory BIOS installation using the appropriate jumper on the motherboard - this option can replace the battery manipulation described above. To do this, you will also need to gain direct access to the “insides” of the computer by removing one of the panels (most often the left one) of its case. Look for the required jumper not far from the battery - next to it, the inscription CLR_CMOS or CCMOS should be etched on the board. By moving this jumper to another position you will return initial settings BIOS.

Use the BIOS reset feature provided in the control panel of this basic I/O system. To do this, initiate the reboot procedure of the main operating system and enter the BIOS settings panel - most often this is done by pressing Delete keys during the boot process, but depending on the version used, these could be the F1, F2, F10, Esc keys or even combinations CTRL keys+ ALT, CTRL + ALT + ESC, CTRL + ALT + INS. Information about what exactly should be pressed usually appears in right moment at the bottom left of the screen on English language. Once in the settings panel, it is best to call up help (F1 key) and find the button assigned to the factory reset function - the corresponding entry can, for example, be formulated as Load Optimal Defaults and assigned function key F9. Clicking the desired button, exit the panel, saving the changes you made.

Video on the topic

In an attempt to endlessly improve the characteristics and operating parameters of their computer, many users sooner or later get to the settings Motherboard BIOS boards and begin to change something in them. They overclock the processor, change the operating memory parameters, hard drive and so on. Moreover, even for an experienced user, such manipulations can lead to the computer stopping functioning normally or not even turning on. In this case, you need to restore standard settings BIOS.

You will need

  • - Computer;
  • - screwdriver.

Instructions

If the computer reaches the system status screen, go to the panel BIOS management and find the item called Restore default settings or some similar phrase. Select this item and press Enter. After that, on the Exit tab, select the “Save and Exit” line and confirm the changes made in the BIOS by also pressing the Enter key.

If the computer does not boot before the above point, reset the BIOS physically using a special jumper switch or button on the motherboard. In the instructions for the board, find the page with a description of the jumpers located on it and check which of them resets the BIOS settings.

Turn off the computer and remove the side cover of the case to expose the board. Find the jumper you need and switch it to the reset position. On most motherboards, this is a set of three pins, two of which are connected to each other by a jumper. Move this jumper to the adjacent position and wait a few seconds. After that, return it to its original position and turn on the computer.

Some board models, especially those that require overclocking, have a BIOS reset button. If you have such a motherboard, just press this button once, and then you can turn on the computer.

Another way to reset BIOS settings is to remove the battery from the motherboard. Carefully remove it from the slot, wait a couple of minutes and install it back. This method is good because the battery is clearly visible on the board and its location does not need to be found using the instructions, but it does not work on all motherboard models.

If the steps described above do not lead to success, most likely the data on the flash memory of the BIOS module is damaged. In order to “revive” the board in this state, contact a service center. For data recovery operation you need special device- a programmer that is unlikely to be found at home.

Video on the topic

Almost every laptop you can buy in a store computer equipment, comes bundled with the operating system. This has its advantages: you don’t have to spend money on buying an operating system, and there’s also no need to waste time installing the system. The presence of an operating system on a laptop's hard drive indicates that the hard drive contains a hidden partition that is used to restore factory settings. Some users deliberately overwrite this partition to increase disk space; some are not even aware of the existence of this partition.

You will need

  • Use keyboard shortcuts to restore factory settings.

Instructions

If you didn't know this existed hidden drive and want to use it for its intended purpose, you can use special keyboard shortcuts. To use the function correctly

Any mistake, even the smallest one, during a BIOS update can damage the motherboard. For example, if during the BIOS update process the computer suddenly loses power or is loaded wrong version, then the motherboard will stop functioning completely. Moreover, even if everything went well and the BIOS was updated successfully, there are cases when the new firmware version contains errors that lead to unstable work systems. Therefore, it may often be necessary to restore the old BIOS to return the system to a working state.

How BIOS works

BIOS or "basic input/output system" works as simple universal driver. It allows you to tie together the capabilities of hardware and software, providing the operating system with normal communication with all components of the computer. The BIOS is also used to check, initialize, and configure hardware when the computer boots, including the pci device. On motherboards, the BIOS software is flashed into a special chip with flash memory. The most famous developers program code for BIOS firmware are Phoenix-Award and AMI. ASUS and other companies are constantly releasing new BIOS firmware for motherboards that eliminate various errors, and also improve their functionality and compatibility when working with new equipment. But you should not abuse installing new BIOS versions if you have no comments about the operation of the motherboard. You should resort to this operation only when you need to fix a problem in the system or install a new processor.

Restoring old BIOS from using ASUS Crash Free BIOS

ASUS offers customers of its products a built-in utility called ASUS CrashFree BIOS, which allows you to roll back the BIOS version to the previous one if you have problems with new firmware. This utility can read a firmware file recorded on a DVD, floppy disk or flash drive, and then automatically uploads it to the chip instead of the “buggy” version. In order to use the recovery mode, you need to save the file of the old firmware version and the utility itself on one of the removable media. If you did not have time to prepare such a disk, then you will have to burn the old version of the firmware and CrashFree BIOS on another, working computer. If the disk is ready, you can install it into the drive of a non-working computer and turn it on. Simultaneously with the system boot, the BIOS recovery utility will be launched.

Clearing CMOS

On most BIOS chips there is a separate module called, which is a memory component that is dependent on a battery backup. CMOS records the parameters of the equipment to which BIOS system appears every time you turn on the computer. If after updating the BIOS the computer begins to become unstable, it makes sense to clear the CMOS to return the settings to factory settings.

When you cannot boot your computer normally after updating the BIOS, you should enter the BIOS Setup. To do this, in the first seconds of loading, you need to press the “Del”, “Delete” or others button. Then in the main BIOS menu, find the “Load Setup Defaults” or “Fail-Safe Defaults” option, select it and press “Enter”. This operation will reset the settings to factory defaults. If the computer does not boot at all and you cannot enter BIOS Setup, you can perform a hard reset of CMOS, for which you need to find the corresponding switch (jumper) on the motherboard. Switch it to the “Clear CMOS” position for 10 seconds and return it back. The placement and appearance of this switch depends on the type of motherboard and manufacturer. After this, you can try to boot your computer.

ASUS BIOS Updater utility

In order to protect yourself from problems that may arise in the future, you can use another utility - ASUS BIOS Updater, which will help you create a backup copy current version BIOS before the update operation. Format USB flash drive to file FAT system 32 or FAT 16, then download and save the latest BIOS firmware and ASUS BIOS Updater utility on it. Connect the USB flash drive to a free port on the computer and turn on the computer. While the computer is booting, press the “F8” button to call up the boot menu, in which select the “CDROM” item. Before doing this, you need to install a boot disk with the FreeDOS operating system into the drive. After loading the OS, in the command line, select the drive letter that is assigned to the flash drive, for example “d:” and press “Enter”. After which you can run a command to create a file in which the old BIOS will be saved - type and run “bupdater /o filename.rom”, where the correct name of the firmware file should be specified.


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