I have a compaq presaro C500 and when i turn it on, on the battery supply icon it says plugged in, not charging and when it is tuned off and plugged in the front Amber colored lighting bolt icon flashes off and on. Does that mean it is charging? Thank you.

ExpressFiX

• 691 Answers
• Posted on Mar 01, 2008

SOURCE: compaq - will not turn on - plugged in?

Disconnect the AC adaptor, Take the battery out and press and hold the power button about 5 seconds. After that connect the AC adaptor and insert the battery turn it on. If issue persist please inform for further troubleshooting.

Good Luck

SOURCE: Dell laptop (E1705). Battery won't charge.

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SOURCE: Compaq M2000 laptop lighting bolt flash 3 times wont start

Could be a bad mother board or a hard drive..see if you can connect the hard drive with a USB on another machine and run a test on it...

Ben Wabnick

• 2404 Answers
• Posted on Jul 04, 2009

SOURCE: 1721 Inspiron shows flashing amber, three times, then blue.

The cells in the battery are starting to go bad which is why the light is blinking the way it is.

Once you get a new battery put in there the light will stay blue instead of flashing amber.

SOURCE: C500 Laptop won't come on power button just flashes

Have you tried attaching an external monitor when the LCD screen is disconnected from the motherboard? this connector is located under the keyboard strip – a piece of plastic just above the keyboard.
If it works, this way, then the video cable isn’t seated properly in the connector on the back of the screen. Plugging the video cable back in should fix the problem.
I don’t know how comfortable you are with taking apart laptops but I think that this information could be useful for you.
Source: http://www.asklaptopfreak.com/laptop-notebook-help/2006/08/08/laptop-powers-on-and-shuts-off-immediately/