Compaq Presario CQ57: Administrator or turn on the system of invalid password

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  Randy Rich

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  It is a 6 cell battery as shown in the following store:

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  With regard to the stem

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  You are the very welcome.

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  I need my password bios for a compaq presario cQ57 after three attempts, I get the system off (85936484) error... Please help with correct code

  Hello

  Enter: 30694400

  Kind regards

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• Compaq Presario CQ57-445EQ: recovery of the BIOS Compaq Presario CQ57 445EQ

  So I got this Compaq Presario CQ57-445EQ with Windows 7 and 4 GB of ram. Last night I tried to upgrade the BIOS of the first version (2008) to the last (2015) and he got bricks. During the upgrade, it got stuck for 30 minutes and I had to reboot. Now it is black screen, caps lock shift will blink twice every 2 seconds. I tried to recover from USB with sp55356 and sp64612 but no luck.

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  Not that I know of.

  You may need to purchase recovery media usb to your laptop to HP or HP partner.

  http://h10025.www1.HP.com/ewfrf/wc/CLC?tmp_showAll=false&'destPage = document & cc = us & dlc = en & docname = bph07143 & lc = en & tmp_clcDestination = doclink

• This could be the cause blinking screen flickering on my day or 2 old Compaq Presario CQ57?

  My PC laptop Compaq Presario CQ57 began to blink the next day I bought and has only worsened over time to the point where sometimes it's almost impossible to see even the screen. This could be the cause?

  Hello

  Please, try the following steps and check if Unit works very well.

  (1) the Bios, graphics & Chipset driver update from the HP website and check.

  (2) once the unit is on keep tapping F10 key and checked if the screen flashes If yes you may need to replace the screen by call HP technical support.

• Compaq presario CQ57: deactivation of the system 85759007

  Compaq presario CQ57 system off (857590070)

  Try > 30631029