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  Sony Vaio A417M BIOS password 
 
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Andrei Cīmpan Oct 25, 2005, 04:48pm EDT Reply - Quote - Report Abuse
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Hello!

How can I remove the power-on password on a Vaio A417M?

thanks!


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Chris McNally Oct 25, 2005, 04:56pm EDT Reply - Quote - Report Abuse
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>> Re: Sony Vaio A417M BIOS password
How come you don't know it?

Regards,

Chris McNally

Moderator - Hardware Analysis
E-mail: chris@hardwareanalysis.com
Andrei Cīmpan Oct 25, 2005, 05:10pm EDT Reply - Quote - Report Abuse
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>> Re: Sony Vaio A417M BIOS password
I bought the notebook on an auction site and.... surprise!

Max K Oct 25, 2005, 11:40pm EDT Reply - Quote - Report Abuse
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>> Re: Sony Vaio A417M BIOS password
You will have to replace the cmos chip or you will need to replace the whole motherboard... Or contact seller and ask to tell you this password...

--
Send me a private message if you need your laptop repaired! Low prices, high quality!
Andrei Cīmpan Oct 26, 2005, 04:06am EDT Reply - Quote - Report Abuse
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>> Re: Sony Vaio A417M BIOS password
Doesn't the trick with shorting the 2 pins on the eeprom work?

Chris McNally Oct 26, 2005, 10:39am EDT Reply - Quote - Report Abuse
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>> Re: Sony Vaio A417M BIOS password
Only on Desktops so far as I know.

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Chris McNally

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E-mail: chris@hardwareanalysis.com
Andrei Cīmpan Oct 26, 2005, 11:29am EDT Reply - Quote - Report Abuse
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>> Re: Sony Vaio A417M BIOS password
It worked for me on a few notebooks.

Andrei Cīmpan Oct 29, 2005, 06:09pm EDT Reply - Quote - Report Abuse
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>> Re: Sony Vaio A417M BIOS password
I just can't find that serial eeprom on the motherboard... Is the password stored elsewhere???

Andrei Cīmpan Oct 29, 2005, 06:13pm EDT Reply - Quote - Report Abuse
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>> Re: Sony Vaio A417M BIOS password
I just can't find that serial eeprom on the motherboard... Is the password stored elsewhere???

Chris McNally Oct 30, 2005, 05:04pm EST Reply - Quote - Report Abuse
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>> Re: Sony Vaio A417M BIOS password
Take it to pieces and remove the CMOS battery

Regards,

Chris McNally

Moderator - Hardware Analysis
E-mail: chris@hardwareanalysis.com
Andrei Cīmpan Oct 31, 2005, 12:51am EST Reply - Quote - Report Abuse
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>> Re: Sony Vaio A417M BIOS password
Already done that but it has no effects on notebooks

Chris McNally Oct 31, 2005, 01:20am EST Reply - Quote - Report Abuse
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Edited: Oct 31, 2005, 01:21am EST

 
>> Re: Sony Vaio A417M BIOS password
It works on some models without all the fancy new fangled security stuff enabled (I'm writing this on a laptop I took apart for just that reason), but if you're out of luck there you're going to have to call Sony I'd imagine.

Regards,

Chris McNally

Moderator - Hardware Analysis
E-mail: chris@hardwareanalysis.com
Andrei Cīmpan Nov 03, 2005, 11:58am EST Reply - Quote - Report Abuse
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>> Re: Sony Vaio A417M BIOS password
I just can't identify any eeprom on the motherboard. May the password be stored in the BIOS flash memory?

Ken LaDere Nov 04, 2005, 08:58am EST Reply - Quote - Report Abuse
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>> Re: Sony Vaio A417M BIOS password
Its a seperae CMOS eeprom chip.. Generally 8 pin and looks like a Field effect transistor.. The only thing you can do is start looking up chip numbers on http://www.alldatasheet.com and see if you can find it. Problem is its a programmed component as well and a blank chip will not work. contact pwcrack.com for te correct chip, The cost is high 99.00 for the chip and the location, (Actual cost may be 1.00). But if you need it? you need it.

Good luck!

Ken LaDere
http://www.ikenfixit.com
231.539.8779
231.758.0529 (message)
ken@ikenfixit.com
Andrei Cīmpan Nov 09, 2005, 05:10pm EST Reply - Quote - Report Abuse
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>> Re: Sony Vaio A417M BIOS password
Already tried to find datasheets for the ICs on the motherboard and I've found only one that is an flash eprom SST 49LF004b, that contains the BIOS. Still there are 2 ICs marked

402WP
ST 9508

and I can't find any datasheet for them. If anyone is able to help me, I can send detailed pictures of the motherboard.

thanks again

Andrei Cīmpan Nov 10, 2005, 04:34pm EST Reply - Quote - Report Abuse
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>> Re: Sony Vaio A417M BIOS password
And here is the answer: the last IC i've mentioned, marked 402WP ST9508 located near the battery connector is the eeprom containing the password! It is a 24c02 eeprom. Just read it with a programmer and modify the dump to bypass the system password.

thanks everyone

linuxian Jun 15, 2006, 08:45pm EDT Reply - Quote - Report Abuse
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>> Re: Sony Vaio A417M BIOS password
so ? no news after having found the chip ?
what did u do after finding the chip ?

please keep us updated - thats why these forums are useful.

thanks

Andrei Cīmpan Jun 16, 2006, 03:48am EDT Reply - Quote - Report Abuse
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>> Re: Sony Vaio A417M BIOS password
Hi!
If you read carefully my last post, you will see that I've found the "security" chip (24c02 eeprom) and modified its contents to bypass the system password.
BTW, I'm typing from that notebook ;)

bye

Jun 16, 2006, 03:59am EDT Reply - Quote - Report Abuse
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>> Re: Sony Vaio A417M BIOS password
That's like saying your BIOS runs on Windows.

linuxian Jun 16, 2006, 07:30am EDT Reply - Quote - Report Abuse
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>> Re: Sony Vaio A417M BIOS password
well ,

I suppose this is a forum to make poeple learn something & NOT to let poeple know that something has been done or can be done, because we know that it can be done & thats exactly why we are here posting in forums ... I believe any question in any forum has to be answered or forums would be a waste of time, & I hope that who ever has found a solution IN THIS forum or ANOTHER would post it with every possible detail, like for example you are telling us that you found the eeprom !! & then read it ... I personaly need more details like for example the location of the chip/eeprom on the motherboard, whats written on top of it, so that we can identify it if its a different sony vaio laptop, the method to read it, & what to change after reading it .. i mean this step by step procedure to unlock a sony vaio laptop with password lock. & this is the question for which this thread was created. I know that it might take you hours to explain this to us .... anyway its up to you if you wana give some of your time for free to help others out of bios obscurities.

linuxian Jun 16, 2006, 07:39am EDT Reply - Quote - Report Abuse
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>> Re: Sony Vaio A417M BIOS password
quote :""" the last IC i've mentioned, marked 402WP ST9508 located near the battery connector is the eeprom containing the password! It is a 24c02 eeprom"""

question1: how did you find out that it was this chip the right one, there are many like that one on the mainboard???

question2: how could you find out that it was a 24c02 eeprom ?

quote: """Just read it with a programmer and modify the dump to bypass the system password"""

question3: how did you read it & then wrote to it ? well, I know about the analyzer.exe but i guess your experience would be a lot helpfull, since all the other forums lack someone like you, I mean someone who has really done it :)

I envy you

lol





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