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Monday, 30. May 2016

BIOS-Update Howto

Step by step to a successful BIOS-Update

BIOS-Update Howto: step-by-step instruction

Never touch a running system!

This golden rule has its reason and says simply:
Don't update the BIOS when your PC is running smoothly!

Only when your BIOS has serious bugs, or newly built hardware such as CPU, RAM, hard drive, etc. is not detected, then a BIOS update should be considered. On the following pages you will find a step-by-step instruction how to update the BIOS.



 1. Preparation - Create a safe environment
 2. Choose Update method - DOS, Windows or BIOS tools?
 3. Start the BIOS-Update - Flash your BIOS chip
 4. BIOS Update failed? - First aid


Attention: this Howto describes only a BIOS update according to standard, how it should work on most mainboards with AMI-BIOS, AWARD-BIOS or PHOENIX-BIOS. I cannot guarentee that it will work on your PC and I assume no liability for any damages! Please read the README files from your Mainboard manufacturer or PC manufacturer.

User-Comments: BIOS-Update Howto

My Hp laptop BIOS corrupted and my laptop was not power on only light blinking. what should I do now?

Dark sun 8.Mar.2016 01:39

Hi, i have a HP labtop win 8, that has trouble booting from the HDD. Also having trouble getting into the bios screen.when function key is pressed e.g F9 change boot device order ,appears on the lover screen and will not proceed.same with other function keys. i need your help . Thanks

TEMBU 22.Nov.2015 04:38

I need ROM file Mercury KOB 740 CFDMx

Cesar 10.Apr.2015 16:02

My Hp laptop BIOS corrupted and my laptop was not power on only light blinking i follow this post and now its working might help someone or at least give you some idea cheers

GIMINI 15.Dec.2014 16:17

@lee johnson
It's a Foxconn mainboard, right? ==>

biosflash 3.Jan.2014 12:04

hi im trying to find and updated bios for my winfast 6100m2ma fab1.0 version 6.00pg last done on 17/11/2006 any ideas which could help many thanks

lee johnson 3.Jan.2014 11:18

@Bill Meyer
quote from webpage: "This method simulates/emulates a floppy drive. Due to the size limitation of a 2.88MB floppy disk, you can only use a BIOS file and flashtool whose total file size is max ~2.7MB!"

biosflash 15.Oct.2013 15:47

A warning on your webpage. Total size of your Dos and Bios files no greater than 2.77 Mb before burning to DVD/CD. I assume the data is corrupted? Can you explain in more detail.

Bill Meyer 15.Oct.2013 15:24

Me and my BIG IDEAS....too bad I found you after the fact, the unit was running smoothly....but I updated anyways [ with the hopes I could up the RAM to 16 ] of course, I was wrong, the computer still worked fine for a few hours, then I got a microsoft warning, to copy files, hdd failure immenent or similar type warning. I ran iobit hdd check, found nothing, went into properties to do a disk check upong reboot and fix the black screen, no bootable device detected, insert boot disk, hit any key. and that was last I am still effin around with this thing. So it appears I need to revert the BIOS...I had no backup plan and had no idea how dangerous this was.

kennywally 22.Jun.2013 00:52


biosflash 20.Nov.2012 06:27
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