Question about HP Pavilion DV6449US Notebook
Click on the Start menu.
In the search box type in "regedit" without the quotation marks.
Go to the following key
In the right panel you'll see something along the lines of "UpperFilter" and "LowerFilter" you want to click on each "filter" key and hit delete. Click yes when it asks to confirm if you wish to delete the key.
If this doesn't fix it then it's a hardware problem - most likely the chip that was replaced has failed again.
In my personal opinion if this has happened before then the unit has a manufacturing defect - just junk it, not worth your time and money.
Posted on Sep 15, 2010
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Posted on Jan 02, 2017
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