How to Recover From a Bad BIOS Flash
Flashing a motherboard's BIOS can have many positive purposes and can help keep a motherboard compatible with changing technology. PCnineoneone.com says that a proper BIOS flash can introduce enhanced features and bug fixes for the motherboard. However, a bad BIOS flash can be devastating to a computer owner and very difficult to recover from. If the proper preparations are made and all instructions are followed, a bad BIOS flash can be corrected.
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Instructions
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Remove the side panel of the computer case, using the screwdriver to unfasten the screws normally located in the back.
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Remove the jumper from its normal position on the motherboard and place it in the recovery position. Usually, the jumper will need to be moved over one space to cover a previously exposed prong. If the motherboard does not have a jumper, removing the battery for 30 seconds and then replacing it may have the same effect.
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Insert the BIOS flash disk and power on the computer. If you used a flash tool or utility and did not create a BIOS flash disk before flashing the BIOS, then you will need to do so using a functioning computer. Since there will be no video, listen for the internal PC speaker to beep. This means it is performing the BIOS upgrade.
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Power down the computer once the BIOS upgrade has been completed. This process may take some time to complete, so be sure to not turn the computer off before the BIOS upgrade is finished. Without video, the only way to be sure is to listen to the PC speaker. When the upgrade is done, the PC speaker will beep again, and the floppy disk drive will turn off.
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Replace the jumper back in its normal position and put the side panel of the computer back on. Power the computer on. If the computer turns on as normal, the recovery was a success.
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Tips & Warnings
Always fully disconnect the computer from any power outlets and press the power button again to remove any remaining charges before reaching inside the computer case.
