I need to reinstall the bios after corrupted bios on a VN7-591G-70RT but it doesn't seem to work?

I was trying to repair windows with a boot repair disk and for some reason my bios gave out. Now Everything on my computer is working but i seem to be getting no display and only the fans seem to be running. When i tried to reinstall the bios using the fn+Esc method and renaming bios .fd file to HadesSX64.fd the power light blinks and then the computer slightly does something but turns off after a couple of seconds. I think there is something wrong with how I am updating the bios or if I need the correct bios version please let me know. All I have on the drive is the renamed .fd file and if I put an .fd with any other name on the usb stick it does not seem to give me a register unless it is named HadesSX64. Any help would be appreciated. Thanks.

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BrollyBoyWahoo

The last time it was running it was running god of war and then suddenly the computer turned off. Probably got too hot. Now there’s no sort of POST to even know what is attached to the computer since it’s not reading the hard drive at all even though it has windows to go. So are you suggesting I use another computer and clone the OS to be able to get everything running. If so I can probably try that? Thanks for the help JackE and padgett. Please let me know how I should proceed to get at least something running on the computer to let me be able to access any file systems?

BrollyBoyWahoo

[removed].

JackE

>>>>>>the bios was gone too and windows was already giving a BSOD>>>>>

The problem here is that the BIOS isn't gone if you were able to get BSODs. They are Windows solid blue error or blank screens that happen well after the BIOS has successfully POSTed. If you tried to mess with the BIOS firmware anyway, then yes it very likely could have been corrupted.

The FN+ESC flash method is a last ditch attempt to revive a corrupted BIOS. It succeeds less than 25% of the time even with the correct filename which is hadesx64.fd slightly different from the one you were using. It is often easier to simply replace it with a pre-preprogrammed chip from ebay vendors for less than $20 since it is a rather large 8-pin surface mount that can be handled with ordinary pencil-tip soldering tool.

So you can try to rename the fd file and try it again. It must be the only file in the root directory of an MBR partitioned FAT32 stick with an activity LED. You start with a fully charged battery and plugged in. Press and hold FN+ESC. Then turn the laptop on still holding the two keys till the fan spins up and you see well defined LED activity. If successful, the machine will automatically shut off after about 3-4 minutes. If not, repeat the process at least twice more.

If still no joy, and you're still convinced the BIOS got toasted (I'm not fully convinced due to uncertainty about the condition of the LCD video cable), then go ahead and replace the chip.

BrollyBoyWahoo

Thanks I tried the fn+esc method though it’s giving a register it goes away in a couple of seconds so no go there. But since I am not good at soldering I have a bios flasher I am probably going to give that a try. The bsod was before the bios started showing up so it might just well be the bios but I really appreciate the help and I will probably update after the flashing process to give an update. Appreciate the help again and will get back later. Thanks!

JackE

OK. Yes, please let us know one way or the other. Some users have tried to use the CH341As. All but one that I recall evenually wound up buying the pre-programmed chips. Good luck with it.

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