HP Elitebook 8440p charging light blinking not booting

[hawiie]

Yesterday morning I am using my laptop then in the afternoon I tried to open but its not booting the charger lught is blinking. I tried deattch the battery and discharge it by pressing the power button then attach the charger. Works but it boot about a minute then its shutdown. I also tried resitting the Memory and tried to discharge again. But same happens.

I Tried also this

Battery out, discharge, battery in, power on
Battery out, discharge, attach ac power, power on
Battery out, ressiting memory, discharge, battery in, power on.
Battery out, resitting Memory, discharge, Ac power, power on
Battery out , resitting memory, detach HDD, discharge, attach HDD, AC power, power on

Sometimes it boot for a minute and it shutdown.

[Ashokkan]

Hi hawiie,

It is great to know that you have tried many correct and good steps to figure out the cause of blinking charger lights.  It is not clear since how long you have this issue. 

We can try couple of steps of doing BIOS update. Try the following steps one at a time. 

1) As you turn the computer on, keep tapping on F10.  This will show the boot options. Press F9 to choose the default settings. Press Y and then press F10 to save and exit. 

This will restart the computer. 

2) Press and hold windows key and the letter B , while holding them down , press the power button till it turns on ..now let go all the buttons... after a while the screen will show Bios recovery.  Wait for the recovery to complete.. an then check if the computer is working. 

Please get back with the result. 

Thanking you for choosing HP

Regards,

Ashok

[hawiie]

I Just update my BIOS a week before this happens .
Yiu think its the BIOS?

[Ashokkan]

Yes .. although you have done the update, we can once more , and if that does not work, then we need to get the computer repaired. This means you will have to contact HP  at 1-800-474-6836.  

The tech support centre will be able to arrange the repair option, depending on the warranty status of your computer. 

Thank you for your reply.  You have a great day

Regards,

Ashok

[hawiie]

Ill try, my laptop is not in my handa maybe nxt week ill give a feedback

[hawiie]

Here is a video link of my problem
https://youtu.be/RdmWiWZOZmI

[Ashokkan]

Thank you Hawiie for the video.  I did see the computer turning on, but the screen remains blank.  I also understand that you have already tried the bios update. 

One more thing you may try is CBR or otherwise called as bios recovery .  So, for this .. turn the computer off.

Press the windows key and the letter B , while holding them down press on the power button till computer turns on.. and then let go all the buttons.  Wait for some time ,( 30 seconds) and see if you see anything on the screen .. It should normally tell us BIOS recovery or update.  If you see such a screen , follow the instruction, it will restart the computer on its own. 

It would be greatly helpful, if you could tell me the outcome of this test. 

Thank you hawiie for the prompt reply.

Take care. 

Ashok

[hawiie]

i just tried it already
caplock light is blinking after doing it.
and cant rollback the previous bios

[Ashokkan]

@hawiie

Hawiie ,  it now appears to be a hardware issue .   You may contact HP Support @ 1-800-474-6836   to get the computer repaired. 

Thank you so much for your patience and for taking time in replying.  Have a great day.

Regards, 

Ashok

[hawiie]

My laptop now is in the repair shop
They said that they do burn test but still the same
Is it the bios problem or somthing?