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HP 6535B Bios Password

Posted on 2010-08-26
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Last Modified: 2012-05-10
We have an HP 6535B laptop in our shop that stops at the Bios Password screen.  The customer is the legitimate owner, but does not know the password.  Is there a way around this?  Thanks, Jerry
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Question by:geraldwold
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8 Comments
 
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Expert Comment

by:B H
ID: 33531868
with hp's, there's a battery pack inside the laptop, usually under the keyboard.  you'll need to remove that battery back, the regular battery, and the ac power... then hit the power button a few times

put it back together and there's no more bios password

by the way you asked this in "printers" so you might not get the visibility you expect - but no worries, i just answered it :)
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Author Comment

by:geraldwold
ID: 33536436
I removed the battery pack, main battery & ac power.  Let it sit for a while, press power a few times & still stops & asks for a bios password.  It does this with the HD out also, so it is in the bios, not the HD.  Any other thoughts? Thanks, Jerry
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LVL 24

Expert Comment

by:B H
ID: 33537064
hmm lemmie look around a little, back in a bit
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LVL 24

Expert Comment

by:B H
ID: 33537378
ok, so you get 3 tries and then some message is displayed telling you you're locked out, right?

please try this:

enter two wrong passwords
then before the 3rd attempt, press f2 then f12
then enter a third wrong password

you should see an error message with a string of characters, please post exactly what you get
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Author Comment

by:geraldwold
ID: 33538348
Thanks.  Didn't get this until after hours.  Will try it in the a.m. & let you know.  jerry
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Author Comment

by:geraldwold
ID: 33562638
Finally got a chance to try it with the same results.  The third try produces a display of the on-screen keyboard and a mouse cursor.  Inputting anothrt password locks the keyboar/display until powering off/on.  
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LVL 24

Accepted Solution

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B H earned 500 total points
ID: 33563023
I was hoping for a string of letters/numbers that looks like an error msg...  it's not really an error code, it's a hash of the pw, with that I can probably determine the pw

Without that, we've done everything except shorting out the actual security chip... which iis too dangerous to cover here

Your best bet would be the owner, or ownership info at an hp service center, or a new motherboard off ebay
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Author Closing Comment

by:geraldwold
ID: 33603920
Advisor did not correct my issue, but gave logical and accurate advice which  would normally lead to a successful repair if HP had not  locked down  this  system as they have.  
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