Not able to start up my hp dv4-1124nr laptop. Giving me black screen all the time. Have tried options like removing battery, AC Adaptor and also memory modules. It is still showing black screen after startup Can someone help. Thanks, NS

Could be a bad battery and/or charger/AC Adaptor/DC Connector. Try to isolate the problem by removing the battery and then plugging the laptop charger in and starting the pc up. It should boot on the AC adapter alone. If it won't boot on the AC adaptor or it flickers and flashes while on the AC adaptor, I would first suspect the AC adaptor or the DC connector on the laptop (try wiggling the power plug at the PC to try and check the connector). If it behaves while on the AC adaptor without the battery present, I would suspect the battery. Either way, you may have to replace something.

Hi,

It is unfortunate that the computer just has a black screen. Request you to try following the below steps which might help:

(1)Turn off the computer.
(2)Remove all the external peripherals like AC Adaptor, flash drives, battery, etc.
(3)Press and hold the power button for 30sec which releases the static on the computer (if any)
(4)Put back the battery and plug in the AC Adaptor.
(5)Let the computer charge for some time.
(6)Try turning on the computer.
If the computer doesn't turn on then check if the computer gives any series of beeps or if there are any diagnostics LEDs being displayed on the computer?
Also let me know if you are trying to just run the computer with a AC Adaptor and without the battery.

Thanks and Regards.
Kiran Kumar.
#iworkfordell.

Try following method to get rid of Black screen problem.
1) TAKE OUT YOUR LAPTOP BATTERY
2) REMOVE YOUR AC ADAPTOR CORD, that's the wall power, remove it.
3) NOW HOLD DOWN THE POWER BUTTON FOR 30 SECONDS.

disconnect ac adaptor, remove battery, remove RTC battery (refer to photo) wait 5 minutes, replace RTC battery, replace battery, reconnect ac adapter, reboot computer, NOTE: you will have to enter into the bios and reset time date and any other options as you see fit.

Unplug the AC adaptor. Remove the battery. Hold down the start button for 1 minute. Replace the battery and plug in the AC adapter. The computer should reboot.

do a power drain 
- shut down the comp, unplug the adaptor and unplug the battery
press and hold the power button without any power connected to the comp
- plug the battery and plug the ac adaptor and turn on the comp

Hi has your laptop started working again?? removing the battery for 10 min thin puting it back in and restarting will work sometimes

I would try the following:
1. Remove the battery completely. If the computer boots properly several times in a row, then the battery may be causing the power supply to do strange things.
2. If you have experience removing laptop components, try removing the hard drive. Because you say the screen goes black (I assume the system powers off) sometimes after the HP logo, I doubt its Windows or a software issue.
3. If HP has a diagnostic CD you can boot to, try that.
4. It may be the power supply acting up. If it charges the battery, and if you can boot to Windows with the battery, try getting a new power supply.
5. Otherwise, it may be the motherboard of the laptop.

This isn't a software issue. If your laptop is still under warranty have it serviced. If not, see if the costs involved are even worth it. Something within the hardware sounds like it caused a chain reaction and has affected more than just the battery.

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