Question about Computers & Internet
I have the Presario CQ57 (Compaq Laptop). The power button on the laptop is non-responsive when pushed. This is both with the battery and AC adapter attached and also tested seperately. I tried the trick of taking out the battery and unplugging the unit and waiting 90 seconds while holding down the power button but the laptop will still not come on when the power button is pushed. However, I can randomly click keys on the left side of the keyboard and it will magically turn on. However, the power button and the light are not on or working. Any suggestions? WOuld much rather use the power button than randomly bang on the computer keyboard to get the computer turned on.
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Posted on Jan 02, 2017
These are prone to broken power jacks that short out components on the mainboard. My shop saaw a lot of these come in dead like this and sometimes we could get them going again with a lot of mainboard work, but it seems they keep breaking.
I would save your money for another laptop considering the lousy reliability record these models have.
Posted on Dec 26, 2007
Try reseting the BIOS to its defaults by following the instructions below :
Start or restart the Notebook and start tapping the F10 key immideatly you see the HP logo.
Now, in this press the F9 key to load the BIOS Default settings.
Press the F10 key to save the settings and exit the BIOS setup window.
Additionally, check by connecting any USB Keyboard to the Notebook if available.
Additionally, find the Product Number of the Notebook which is indicated with P/N printed on a white sticker pasted at the bottom of the notebook.
Open HP.com and enter this in the search field at the top right column.
Click on Software & Driver downloads and select the Operating System in the Notebook which should be Vista.
Scroll down to find BIOS under which you will find the BIOS Updates available for your Notebook.
Download and save the latest BIOS Update available.
Close all the windows and applications and double click on the file to update the BIOS.
Donot attempt to access any application or turn it off or restart when the BIOS is being updated as this will damage the BIOS Chip and make the Notebook useless.
The Notebook will restart automatically after the BIOS is Updated.
Hope this helps...
Posted on Aug 14, 2008
You need a flat bladded thin screw driver to prise off the long cover
the runs along the top of the keyboard and just below the screen. Make
sure you remove any screws at the back of the screen hinges, and along
the top above the battery housing (you need a small posidrive
screwdriver for this). You will find there is a screw on the underside
of the laptop that holds the keyboard in place from underneath, plus
two or three very small screws on the top at the screen end. When all
the screws are removed you can lift the keyboard up from the screen end
and pull (gently) away from the touch-pad end. Tilt it up and you will
see the keyboard data ribbon, don't twist it or pull it as you will
hope this helps
Posted on Nov 13, 2008
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