bios

[zoltan360]

Found out bios has been deleted on my lappy. Does anyone know how to install this again? Issue is i cant access anything on it as screen doea not show.

 

[ShoTTaS]

Did you try to update your BIOS and ended up deleting it?

That could be a great disaster, you can try reflashing your bios but i cant help you with that. lets wait for the experts to see your post.

Good luck man.

 

[zoltan360]

Sounds very bad i gess thats what i did it all started from trying to go back to windows 7 from 8 so major fail. Shourly theres a way to just install it again.

 

[ShoTTaS]

There's a way, reflashing you BIOS, but i really dont have an idea how to do that.
Just hang in there for a while, i am sure someone can help you. Gurus in this forum are great.

 

[zoltan360]

Thanks i was just googling and i found this haha so hopfully someone can help

 

[AddRAM]

You guess that`s what you did ? Either you tried to flash the bios or you didn`t.

Please fill in your specs, we have no idea what we are talking about here. Exact make and model of pc.

And no it`s not as simple as re installing it again.

Does the motherboard have a BIOS reset button on it, on the IO shield ?

If you get no help here, contact the manufacturer.

 

[zoltan360]

Sorry its a hp dv6 i tried to format the hdd because it had win 8 on it and aprantly deleted the bios going by the blinking lights. And im not sure about a reset button on the mb

 

[AddRAM]

So when you power on the pc (laptop ?) you get absolutely nothing on the screen ?

Once again, please fill in your specs.

Page 112 talks about the bios, maybe it might help.

http://www.hp.com/ctg/Manual/c02842252.pdf

Pretty tough to delete a bios I mean you really have to go out of your way.

 

[PeaB4YouGo]

Makes me wonder if OP understands what the BIOS is and where it's seen during boot. I can't understand how one would mess up the BIOS settings while messing with OS changes. I mean, what does "blinking lights" have to do with BIOS?

i tried to format the hdd because it had win 8 on it and aprantly deleted the bios going by the blinking lights.

 

[AddRAM]

Yep, that`s why I asked him to contact HP, they will know best.

A lot of sites have the ability to chat right with a representative.

Nothing on the screen at all could mean a bad screen or that part I can`t think of the name of right now.

 

[zoltan360]

Um caps lock key blinks twice when power is connected. Also screen is completly blank. No beeps. And when power is disconnected and reconnected the laptop powers on without having to press anything. But just powers nothing actually happens. I have tested other things and i now have win 7 installed on the hdd. The ram is fine and screen is fine. It was all going good before i did this so thats why i assuming the bios is deleted or currepted

 

[gregrocker]

Unpllug power and battery, hold Power button down 30 seconds. Then plug in power cord to see if anything changes.

You have to flash the BIOS chip on mobo to wipe or update it. If you didn't do that then you more likely changed a setting in your BIOS that is causing it's display not to work? Can you remember what you changed in BIOS, and if not why would you mess in the BIOS without specific instructions about what to do? It can be very unforgiving.

I think what I'd try next is to google your model for replacing CMOS battery or disassembly and then carefully remove the CMOS battery to reset the BIOS: Clear CMOS - 3 Ways to Clear the CMOS - Reset BIOS

However this is so risky if you place any value on the laptop I would take it to a shop. Here in the states the Best Buy Geek Squad will run enough tests to tell you what the problem is before you even have to pay. I make an appt with them first so I can stand there at the counter to hear the results.

 

[zoltan360]

To be honest i dont really know what i did or how the issue arised from me trying to solve one thing and made life worse lol. It was a little wile ago i did this and just etting back to it now. I do remember that when i tried to swap between 8 and 7 it did come up with a bios error of some sort. And i have tried disconnecting power and coms bat as this solved the issue the fiart time but ive seemed to muck something else up now assuming its the bios and i have tried the coms bat again etc with no joy. Also im im NZ might give hp a cal sometime and ask them to

 

[Slartybart]

IF it is... and I suspect it's not, BIOS - then this will do the trick
HP PC Hardware Diagnostics: 3-in-1 USB Key

I'll have to look this up - but the machine is telling you something:
caps lock key blinks twice

 

[zoltan360]

When i looked up that perticular blink it says its a bios issue thats why ive been mentioning that figiring it was that

 

[AddRAM]

As I`ve said 3 times now, contact HP.

 

[zoltan360]

I will be just thought i would ask here first and go over everything i can. Someone might of had the same problem out there. Even though it was a dum mistake haha

 

[Slartybart]

well, how about that, it does appear to be corrupted BIOS:
LEDs blink 2 times BIOS corruption failure

Computer does not start and the LEDs blink or the computer beeps HP Pavilion dv7-1245dx Entertainment Notebook PC | HP® Support

Notebook BIOS corruption failure

If a BIOS corruption error occurs (Blink code 2), you may not even notice the blink codes, because as soon as the computer recognizes the error, it restarts, attempts to recover the BIOS, and then restarts again. You may notice an extra-long startup process as a result, and a message indicating that the BIOS has been recovered may display on startup. If this occurs, update the BIOS on the computer. For more information, see Updating the BIOS .

If the computer does not automatically recover the BIOS, manually perform a BIOS recovery by following these steps:

1.Turn off the computer.
2.Plug the notebook into power using the power adapter.
3.While the computer is still off:
a.Press and hold the Windows key and the B key at the same time, and then press and hold down the Power button on the notebook for one second.
b.Release the Power button and the keys.

By following these steps the BIOS will reach the EFI partition in order to recover the BIOS to the last known good version of the BIOS from the hard drive.

For information on how to restore the BIOS refer to the HP support document: HP Notebook PCs - Restoring the BIOS .

 

[Slartybart]

If this is a DIY downgrade from Win8 to Win7, how did you come by the Win7 license?

There are settings in BIOS that need to be disabled before attempting a downgrade
- the OEM is really the only entity that can provide the downgrade key (I think)

 

[zoltan360]

Yes but the windows key + b doesnt do anything sadly so based on tgat im gessing that there is nothing at all there ill have another troll through the form but im thinking i neda somehow flash bios back on or aomething along those lines