Question about Sony VAIO A250 Notebook

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Cmos or bios ask me for a password I dont remember is a sony vaio notebook vgn a250

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Try going into the bios settings then disable password some times it works

Posted on Oct 09, 2010

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Try this...

If you have forgotten your BIOS or system password, there are no software tricks or magical gimmicks that will get the password cleared. Laptops are different in that they are designed to not work with “backdoors” etc. for security reasons. There is one true way that works most of the time and that is hardware.
The Cmos (RTC) battery that is mounted on the motherboard in most cases holds the key, if your motherboard has the battery that is connected to the motherboard by using a two wire socket that plugs into the MOBO, then here is the procedure.
On the motherboard where the battery plugs into, you will see two pins sticking straight up, these engage the plug on the battery side. These two pins have to be “shorted” and then the motherboard powered up for approx. 30 seconds, then power down the system and replace the Cmos battery and reboot. Your password problem should be cleared up. The best way to “short” the pins is get another cmos battery and cut the wires from the battery part, bare the ends and twist together, this will short the pins. Make sure you tape the connection good on the jumper you just made….don’t want to touch anything else with powered up bare wires. Good luck.

Posted on Sep 27, 2009

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To disassemble follow the bellow links.

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http://www.laptopparts101.com/cmos-rtc-battery/

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Please open you vaio laptop from bellow instruction link.
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Follow step 14
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http://www.insidemylaptop.com/disassemble-sony-vaio-vgn-bx-series-laptop/

Follow step 11

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http://home.comcast.net/~nw_systems/vgnA.pdf
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