How to reprogram (Flash) Laptop BIOS

Your laptop’s BIOS (Basic Input Output System) is the first software your laptop loads. It sets the stage for your operating system; so to speak, by finding all your laptop’s various hardware components and letting the operating system know it can use them. If your system has a Corrupted Bios and won’t turn on you will need to flash the motherboard bios with a .bin file

Disclaimer: Please follow the below at your discretion, as we will not take any responsibility for problems encountered or any damage that could occur. This may also void your warranty. You are flashing at your own risk, this is general information.

Flash BIOS with a USB flash Drive (for laptop turn on but with black screen)

  • Step 1: Identify your laptop module and current BIOS version.
  • Step 2: Check your laptop/motherboard manufacturer’s Website for BIOS file and downloaded.
  • Step 3: Unzip BIOS file to a folder of your choice. Format a USB flash drive to use the FAT file system (Use the smallest one you could find).
  • Step 4: Copy the xxxxx.FD to root of the newly formatted USB flash drive and RENAME the file xxxx.FD to xxxx.BIN. (Every BIOS has special xxxx.bin name check the our website or the internet for the right name for your BIOS .bin file)
  • Step 5: Remove the AC adapter and the battery and hold down the power button for 30 seconds. Release the power button.
  • Step 6: Insert the USB Drive into one of the USB ports on your laptop.
  • Step 7: Hold the ( Ctrl key +Home key for Asus laptop) or (B key + Windows key for HP laptop) or (FN key + ESC key for Acer laptop) down at the same time.
  • Step 8: Plug the AC adapter back (in keep holding the keys down while you plug in the adapter).
  • Step 9: Turn on the laptop, when the LEDs came on, let go of power button and then the two keys held down earlier.
  • Step 10: After few seconds the laptop started reading the USB flash drive.
  • Step 11: If the file was found then it took some seconds for the laptop to load it.When loaded the laptop power led start blinking. About few seconds after the blinking had stopped the laptop shutdown. BIOS worked normally thereafter.

Flash BIOS with a programmer (for laptop doesn’t turn on at all)

  • Step 1: Identify your laptop module and current BIOS version.
  • Step 2: Check your laptop manufacturer’s Website or the internet for BIOS bin file and downloaded.
  • Step 3: Remove the corrupted Bios chip from the motherboard.
  • Step 4: reprogram your bios chip with bin file using your bios programmer (Each programmer has his own way to flash the BIOS).
  • Step 5: Solder the BIOS chip to the motherboard and turn on the laptop.

good luck

21 thoughts on “How to reprogram (Flash) Laptop BIOS






  2. helpmate

    you can download the .EXE bios file from the hp website
    extract the .EXE file you will the bios.wph file. you have to convert the .WPH to .BIN file with an Hex Editor. you have to know the size of the Firmware chip, knowing the start and the end bit number for your bios file. erase the other bits save your file as bin file


    hi i have acer aspire ao756 do you have bios for flash and steps to flash it using usb?

  4. cari


    HP G62-a80sv wont turn blank screen but running fan (I initially suspected gpu problem cause my keyboard does not have the caps lock LED) on HP G62-a80sv. Make UEFI usb stick with 52264 tool from HPSupport/model nr./bios on Windows 7 computer. Download also from the same place (HPSupport/model nr./bios) 49367 (F0B) bios update. Unpack the 49367 with winrar or 7zip and you will see some files. Rename 01439.fd to 01439.bin.
    I use Phoenixtool266. Open the Phoenixtool version what you have. On the “Original bios” choose the “01439.bin” what you just modified. On “Manufacturer” choose “HP”, on “Slic file” choose “HP.BIN” and now the “Go” button is not locked anymore and press it. You don’t need to modify or to press anything else. When you see on the “Status” field “Success”, you’re done with this and you can close the tool.
    Now, go to the folder where you extracted the file and you will see among other files 01439.bin.DEC and 01439_SLIC.bin.DEC. Copy this two files on your usb stick, on folder Hewlett-Packard/BIOS/Current and rename 01439.bin.DEC to 01439.bin and 01439_SLIC.bin.DEC to 01439_SLIC.bin.
    SAFELY REMOVE the usb stick NOT UNPLUG.
    Plug the usb stick on the dead machine (with the HDD disconnected), plug in the power adapter, press the power button and pray.
    You don’t need to press any other button.
    The computer will start and stop every 3-4 sec for about 10-15 min (with the black screen) and …..on my case goes ALIVE.
    After the computer starts normally you can upgrade your bios to F35 (50335), or how i do directly to F48 (55430) via windows.

  5. Boricua

    I have a DELL Vostro 3500 upgraded from BIOS A10 to A12 and bricked the laptop. Found no help to repair a black screen laptop. Can anyone help?

  6. MooriR

    I have a Acer Aspire F5-573G laptop and when i turn it on, I just see black screen (I can hear the sound of the fan).
    I decided to flash the bios, but when I download the from, it’s bios.exe
    How should I flash the bios when it’s a .exe file and windows won’t boot?

  7. David

    I have a .bin file for a toshiba, what are the keys in step 7?, Can it be done with usb without a programmer?


    Hi, I need the special name for the Acer E5-521 .bin, since my laptop does not turn on, it remains on the black screen and it beeps 3 times long and 2 times it repeats it 3 times and it stays that way, it does not give an image or bios. If you can help me with that, I thank you in advance.

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