Question about HP Compaq Presario R4000 Notebook
I checked power options and set to minimum battery. Also pressed f5 ( moon icon key) and arrow up key, nothing. Please help. HP tech support charges for any kind of help. I will never buy another HP product again.
The R4000, or at least mine will appear to be brighter when on battery also. If you press the function key and then the f8 key it will brighten the screen.
Posted on Apr 18, 2009
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Posted on Jan 02, 2017
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