Computer laptop Compaq could not start

My laptop model is Compaq Presario CQ40-502AU. I used it for over 2.5 years.

Recently, the laptop could not start from time to time. The LED flashes to keep, but the laptop does not start.

Referring to this article:

http://support.HP.com/us-en/document/c01732674

I preformed hard reset and manged to get the laptop starts. However, the problem after several days reappered and perform a hard reset is not enough to start the laptop. Sometimes, I need to do the hard reset many times to start the laptop.

I recorded a video on the State of Flash of the LED.

https://SkyDrive.live.com/redir.aspx?CID=4aa65a2248b908f1 & RESID = 4AA65A2248B908F1% 21412 & parid = 4AA65A2...

I don't know if it qualifies as keeps flashing indicating the problem on my adapter?

Someone please help me on this. Thank you!

Greetings,

Disconnect the power adapter and remove the battery from the laptop. Once this is done, press in and hold the power button on the PC for a minute. Only reconnect the AC adapter and try to turn the unit back on. If this problem persists, turn off the device by pressing the power button for 8 seconds. Disconnect the power adapter and the battery. Try to start the PC again.

If the PC starts, during the Compaq logo, press the ESC key to enter the boot menu. While in the boot menu press the diagnostic mode (should be F10) and run a diagnostics of complete systems. That should tell you which device is a failure. I hope it's nothing serious, maybe a defective battery.

If your system seems to be stable during the startup and shutdown not randomly on its own, I would try to update the BIOS once started in Windows by downloading on:

http://h10025.www1.HP.com/ewfrf/wc/softwareDownloadIndex?softwareitem=ob-86224-1 & CC = US & DLC = in & LC = on & os = 4062 & Product = 3973096 & sw_lang =

Don't forget to follow directions exactly as displayed on the HP site.

Good luck
Brent

Tags: Notebooks

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