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Bios Admin Password Locked


ssprod
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Greetings, Just purchased a used D630 (Nvidia) and was looking forward to trying a Yosemite build, however I'm unable to modify any of the bios settings, as it is presently locked to a system security administrative password. I have emailed the person who sold it to me, and have not heard back a reply. Thinking I'd be tricky, I unplugged the cmos battery connector for a few minutes, however this has not solved the issue. Any help on this issue would be greatly appreciated. Thank you very much. ssprod

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Some laptops require the cmos battery to maintain the bios password. It's worth trying removing the battery for a couple of minutes and then plugging it back in to see if that clears the password. From memory the battery is a little coin cell underneath the keyboard with a little plug onto the motherboard.

 

Do you get a prompt message which contains the service tag - something like 123545-1234?

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After verification, once updated to BIOS A18/A19, D630 laptops get a -3A5B system number trailer. With previous BIOS versions up to A17, the trailer tag is -595B.

 

The BIOS password generator tool only supports D630 system numbers ending in -595B. In addition, unlocking passwords obtained with -595B don't work in BIOS A18/A19. You must downgrade to BIOS version no higher than A17 to be able to unlock your password.

 

I'm now sticking to that version and I suggest everyone does the same. BIOS versions A18/A19 do not bring any new features anyway.

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