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Acer V5-571 Series BIOS Locked and need code / Help

When trying to boot to the OS, I get an error 0xc000021a and the PC continuously tries to reboot.

If I press F2, I get a dialog box with Password/Unlock Key and the code 11DAA97B.

I am trying to get it to boot to CD so I can re-install Windows.

I tried entering a code from, but it did not work.

Hopefully, somebody can help with this issue.

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Puan 9
22 Yorum

what the unlock key hint number a42eb255





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da Ivano


Whats 5he unlock key - 4B43313E


password/unlock key : .........

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On the Acer Aspire V5 series, if you open the bottom cover and remove the RAM you should find a couple of pads on the board labelled G2201. Remove the battery and power cord from your machine. Use a piece of wire to short those two pads. While holding the wire, plug the machine back in, then hit the power button. This should clear the password. I had to do this a number of times, but what finally worked was to hold the power button down while the machine came on, then shut off. I cycled this a few times then eventually the password was removed and I was able to get into the BIOS setting screens. Good luck!

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Puan 18

19 Yorum:

Hi, thousand thanks to you. I thought I loss my laptop. Fortunately your answer help me out. God bless you.


Thanks, I helped!


I tried a lot of things to get this laptop fixed for a friend of mine. Your info did it. Thank you to put this information out there ;-)


Hey tom, I opened up the laptop, took the out and I can see only one G2201 and the other two are G2101 and G2701. So I was just wondering which ones do I short out. I'm using the Acer aspire v5-571. Please help me out it would be greatly appreciated. Thanks


Thanks a lot, you helped me...


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You can Just buy Your Password at Choose ( Acer ) and take it from there or here is the direct link: tested and working even on laptop built in 2018

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Puan 1

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This worked on an Acer A717-72G from 2018, which had a corrupted BIOS password (the password was known to be 1234).

The key to unlock arrived after roughly 90 minutes.


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The solution suggested by Tom Stephenson above worked for me, I was using a wire from an audio cable which wasn't working for me at all, I guess because it has too many little fibre cores. I then tried using a wire from an ethernet cable cut out a coloured piece snip both ends and place each end on the G2201 copper triangle pads. Worked first time hold the wires in place then press the power button and hold.

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