DV4 not booting - blank screen with leds blinking for ever

[epzee]

Hello, my Pavilion DV4 is not booting. After I press the power button I get a blank screen and the leds blink for ever...

1. Product Name and Number
     • HP Pavilion DV4

 2. Operating System installed 
     • Windows 7 64-bit

 3. Error message 
     • Caps lock and bloq num leds keep blinkin (the pattern doesn't match any of the listed issues in the error code list) 

4. Any changes made to your system before the issue occurred
     • None. Normal use before this issue.

Any ideas?

Thank you!

[DavidPK]

Hi,

It's always worth trying a Hard Reset as follows.

Shut down the notebook, unplug the AC Adapter and then remove the battery.  Hold  down the Power button for 30 seconds.  Re-insert the battery, plug in the AC Adapter and see if the notebook will start.

Regards,

DP-K

[epzee]

Thanks David! I still have the same blinking led pattern.
Why don't they match the standard error codes? Does this mean a total meltdown?? 😞

Any other idea?

[DavidPK]

Hi,

There's something else I'd like to try.

Can you post back with the full Model No. and Product No. of dv4 series notebook ( from the service tag underneath your notebook ) - see Here for a further explanation.

Regards,

DP-K

[epzee]

# Product: WJ869LA#ABM
# Model: dv4-2116la
# Serial: CND017130P

[DavidPK]

Hi,

First of all, with reference to your Maintenance & Service Guide follow the procedure starting on Page 54 to remove the RTC battery.  When done, hold down the Power button for 30 seconds and then leave the notebook for 10 minutes before re-connecting the RTC battery.

See if the notebook will now boot.

If it still shows the same 'blink' error on starting and you have more than one Memory Module installed, try the following - if you only have 1 module, try it in the other available slot.

With reference Page 52 of the above Manual, remove one of your memory modules and then see if the notebook will boot.  If it doesn't, try the same module, but in the other slot.  If is still doesn't boot, try the other memory module in both slots, to see if any combination will allow the notebook to start.

Regards,

DP-K

[epzee]

I just finished trying what you said (including all possible combinations with the 2 ram modules) and the led pattern remains.

Any other idea?

Thanks!

[DavidPK]

Hi,

It's worth removing the WLAN Module and see if the notebook will boot without this hardware present - the procedure is detailed starting on Page 59 of your Maintenance & Service Guide.

Regards,

DP-K

[epzee]

Done... but no success 😞

Today I spoke with hp support and they told me it's either the hard drive or the motherboard.

Any other thing I should try?

Thank you!

[DavidPK]

Hi,

You're welcome

I would have to say, that this does not look like an issue with the Hard Drive.  It does however look like some component of the Motherboard has failed.

You can rule out a problem with the Hard Drive as follows.

Remove the Hard Drive from your notebook - the procedure is detailed starting on Page 50 of your Maintenance & Service Guide.

Using another PC, follow the procedure on the link below to create a bootable Ubuntu CD and then follow the steps in Part 3 to 'Try it' to see if this OS will run on your notebook.  The 'Try it' option runs the OS from the CD without the need to install on your HDD. 

http://www.ubuntu.com/desktop/get-ubuntu/download

Let me know if this will run.

Regards,

DP-K