How to recover BIOS?

The BIOS is a microprogram written on a chip on the motherboard that is responsible for launching, testing and configuring the equipment at boot.

If, for some reason, the BIOS isdamaged or not suitable for the board, there is either an unstable computer operation, or it does not load at all. And there is a problem how to restore the BIOS.

Ways to restore Bios

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

Download from the Internet from the site of the BIOS manufacturer for your board and the firmware program Phoenix or InsydeH2O.
Make sure that the computer is connected to the network through an uninterruptible power supply.
If you decide to flip from Windows, you need to disable the Internet, network connection, unload all unnecessary programs and disable the antivirus.
Dissolve the BIOS file and run the file with the bat extension. The program will flash the BIOS and restart the computer.

If the computer does not load:

If the motherboard has an emergencyrestore the faulty BIOS on it there is a jumper Flash Recovery. To restore the BIOS, you need to put it in the Recovery Mode, install a special boot disk that comes with the motherboard, and turn on the computer. The program will overwrite the BIOS with 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 functionyou can try to flash it on another motherboard that supports this type of BIOS. To do this, on the worktable, carefully remove the BIOS with a flat-blade screwdriver and install it back so that its feet only touch the connectors. The computer is loaded into the DOS. After the download, the working BIOS is removed, and the failed BIOS is installed and the BIOS update program is launched. After the end of the firmware upgrade, the computer can be turned off and unplugged from the BIOS. The method of flashing BIOS in another motherboard is working, but it is dangerous because you can damage the BIOS itself or the motherboard. Therefore, we strongly recommend in this case to contact the repair shop, where the BIOS will be pereproshyut on a special programmer.

The problem is how to restore the BIOS of the laptop is solved approximately the same way.

From another work computer go to the Internetand download the program to create an emergency disk Crysis disc. The easiest way is to download these programs from the site soft.ru. Take the flash, format it in fat32, write down the program on it and download Bios from your internet card.
Remove the battery from the laptop. Insert a USB flash drive. While holding down the Fn and Esc keys, turn on the power from the laptop's network and turn it on. Restoring BIOS will take only a few minutes and the laptop will reboot. After that, the battery can be returned to the place.

If you experimented with BIOS settings and your computer did not work correctly, you must return the previous settings. How to restore BIOS settings:

Restart the computer and go to the BIOS. In the exit tab, find Load Setup Defaults, which means that the default settings are restored and click on it. After that, the computer will reboot with the already restored settings. However, this method does not always work.
If you do not restore the settings programmaticallyI managed 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, reset it to another position to reset it.
Instead of a jumper, there may be a button next to which there should be a CMOS inscription. In this case, simply press the button to reset the settings.
If there is no jumper or button, you should pull it outsome time battery itself. To do this, it is necessary to press the screwdriver with a screwdriver, after which the battery will be easily pulled out. After a few minutes, you can put the battery back and boot the computer. The BIOS settings will be standard.