Shoutbox

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Originally posted by john-t
Try using the password Dell to get into the BIOS it's a known backdoor for most dell's.

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A password is not a backdoors; its simply a password.

Anyway, if you're trying to get into the BIOS of a desktop with absolutely no luck, pulling the little watch battery out of the motherboard and putting it back in resets the BIOS, but dont forget to reset the date/time and all that jazz.

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Originally posted by Dane

quote:

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Originally posted by john-t
Try using the password Dell to get into the BIOS it's a known backdoor for most dell's.

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A password is not a backdoors; its simply a password.

Anyway, if you're trying to get into the BIOS of a desktop with absolutely no luck, pulling the little watch battery out of the motherboard and putting it back in resets the BIOS, but dont forget to reset the date/time and all that jazz.

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It is a laptop not a desktop. So unless you are taking it apart you dont have easy access to the battery.

Can you press like F8 or F12 or some key that will allow you to select a boot device?

The only other solution I could think of would be to get an IDE to USB adapter ($20) connect the Harddrive over USB and use VMWare to boot the drive. You need to allow VMWare to access the entire device not just a Virtual Disk. Once you have this you may be able to boot from an NTPassword Boot CD and reset the passwords.

It is worth a shot other then that I have no idea.

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Originally posted by Jarrod
or some how get the hdd into another pc and wipe it, then copy bartpe on to it and work from there

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That would be pointless. If you consider disconnecting the hdd from the laptop just disconnect it, let the laptop boot from the cd and connect it again.

Network booting can be achieved by setting up a "Netboot Server" on another PC. See this

Afraid I've never used it before.

try the utility shown here:
http://www.cgsecurity.org/wiki/CmosPwd
it claims it can decrypt passwords from many brand-name computer BIOS's

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Originally posted by MeEtc
try the utility shown here:
http://www.cgsecurity.org/wiki/CmosPwd
it claims it can decrypt passwords from many brand-name computer BIOS's

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...and now to find a way to run it



oh wait... that was his problem in the first place

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Originally posted by MeEtc
try the utility shown here:
http://www.cgsecurity.org/wiki/CmosPwd
it claims it can decrypt passwords from many brand-name computer BIOS's

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i want to reset the bios password not decrypt it, i'm knoledgable enough to know how to reset bios passwords(password reminder))
atm i'm checking out this network boot thing

also i don't think backdoor bios passwords have beed used since the 80's
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edit: i have the vm jesus suggested, any detailed tutorial on how to use it?

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Originally posted by Jarrod
edit: i have the vm jesus suggested, any detailed tutorial on how to use it?

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this is a youtube video tutorial on how to set up the basics.
After completing this you should have a web interface to the UDA which is more or less self-explanatory.
Basically you have to provide it with one (or more) ISOs to boot from.

You'll also have to set up a PXE boot environment (if you haven't done so already) which will most likely require you to replace your current DHCP server with a more advanced one with PXE (tFTP) support. This can also be achieved in a temporary network existing of just the pc running the VM (and the DHCP server) and the laptop, to prevent conflicts with your current DHCP solution.

If this seems like a lot of work to you, you might be better off buying a USB IDE interface and plugging the drive into another PC.

honestly matty these days the CMOS battery is generally located such a way that it is easily replacable... Just pop open the panel where you can replace ram and check there, if not check where the wifi card is located... Just make sure to pull the power cable out, the battery out and once you have done both hit the power switch on the laptop before you go excavating in your laptop.

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Originally posted by ipab
honestly matty these days the CMOS battery is generally located such a way that it is easily replacable... Just pop open the panel where you can replace ram and check there, if not check where the wifi card is located... Just make sure to pull the power cable out, the battery out and once you have done both hit the power switch on the laptop before you go excavating in your laptop.

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problem is, that probably won't work on laptops...

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Originally posted by http://www.pwcrack.com/bios.shtml
Most laptop manufacturers have provided additional safeguards for their computers. We are not aware of any simple BIOS recovery program that works on laptops, nor are we aware of any simple backdoor passwords for these machines. BIOS passwords in most laptops are stored in a special chip on the motherboard and the only way to bypass this password is to replace this laptop security chip. Laptop BIOS passwords cannot be bypassed or reset by removing or shorting the CMOS battery. Further, doing this may cause other system errors and complicate the recovery or your system.

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