Power ON – No-Display Issue

[pallavi_praveen]

Here are two methods that we can try to fix "Power ON – No-Display Issue" Issue.

Method 1: Release the electrostatic charge
1. Check whether the connection between the power adapter and the computer is proper. Unplug and plug in again and power up.

2. Disconnect the AC Adapter and all the peripherals on the unit. (If there is a removable battery, please remove).

3. When the external power supply is normal, press and hold the Power ON button for 10 seconds to release the electrostatic charge. (Note: this is only suitable for models released after the year 2017.

4. Plug in the AC adapter and Power ON your computer after completing the steps mentioned above.

Method 2: Restore the BIOS
If the problem persists after the electrostatic charge was released, for example, if you notice the Power ON button is blinking up to 8 times, you may proceed to solve this via BIOS recovery.

Note: Please backup all your important data before doing this

Scenario 1: BIOS recovery via key combination

1. Press the ‘Windows’ key and the ‘B’ key at the same time
2. Don't release the keys. At the same time, press the Power ON button for 2 to 3 seconds, and then release the Power ON button; but continue pressing the ‘Windows’ and ‘B’ keys.
3. If it works, the Power ON LED button will lit up and your screen will remain blank for about 40 seconds. After that, you will see contents being shown on your screen. You may hear some beeping sound throughout this period. In the end, a screen showing “HP BIOS Update” will pop up and your computer will automatically update the BIOS.
4.   Once the BIOS has been recovered, the [Continue Startup] will be displayed, and a timer will begin to countdown. Click the [Continue Startup] to restart the computer immediately, or automatically restart the computer when the timer reaches zero.
5.  When the computer restarts, it will display a blank screen with the following messages:

• System BIOS recovery has completed - BIOS Recovery (500) - Enter – to continue
  At this point, press Enter to startup immediately, or allow the computer to restart automatically
  
• Scenario 2: BIOS recovery using USB recovery drive

  If the steps in Scenario-1 didn’t work, we still have other ways to do so.
  Another option: Download the BIOS using another Internet-connected computer, to create a USB recovery drive, and install it on your computer.

  Step 1: Create A USB Recovery Drive

  1. Find the Product Number and Model Number of the computer which is required for BIOS recovery. This information is usually stated on the label located at the back / side / box of the computer.
  2. Insert an empty USB disk into the USB port of another Internet-connected computer.
  3. Visit the HP Customer Support-Software and Driver Downloads at https://support.hp.com/cn-en/drivers page.
  4. Navigate to the page where it contains information of your computer.
  5. Select the BIOS and carefully review the details of the latest or recommended version for recovery. You must ensure that it is the correct file for BIOS Update before proceeding.
  6. Click [Download], and then click [Run]. Click [Yes] on the "User Account Control" screen.
  7. In the Installation Wizard window, click [Next]. Select [I accept the terms in the license agreement], and then click [Next].
  8. Select [Create USB Recovery Flash Drive], and then click [Next].
  9. Select the USB flash drive, and depending on the file system type
     a) FAT32: Click [Next]. & b) exFAT, NTFS or other types: Click [Format].
  10.  Wait patiently for the BIOS file to be copied to the drive.
  11. When the message [Successfully created recovery flash disk] is displayed, click [Finish].
  12.  Remove the USB drive from this computer.
  
  

  Step 2: Install the BIOS recovery file

  After the USB Recovery Drive is created, follow the steps below.

  1. Shutdown your computer and wait for 5 to 10 seconds.
  2. Insert the USB Drive into the USB port of your computer.
  3. Press and hold the “Windows+B” combination keys at the same time, and then press and hold the Power ON button for 2 to 3 seconds.
  4. Release the Power ON button but don’t release the “Windows+B” keys.
  The HP BIOS update windows will be displayed, and the BIOS will start to recover automatically. Just follow the on-screen instructions until completion

If the issue still persists please contact HP support.

We would like to encourage you to post a new topic in the community so our member will be able to help you as well, here is the link to post.

[bamajab]

  Many thanks.   Happy Mother's Day!

[jpbelondon]

Didnt help still doesnt recognise screen

[pallavi_praveen]

@jpbelondon : Could you please elaborate more on the issue your facing. Was there any Error message while following these steps.

If you could share more details will try to help fixing the issue. Thank you.

[pallavi_praveen]

@bamajab - Thank you.

[Cela11]

Tried method 1 and 2. No blinking led lights.  Blank screen. Power on. Next step?

[pallavi_praveen]

@Cela11 Thanks for following the instructions. As the issue is still not resolved, request you to contact HP support. Let me know if you need support numbers.

Thank you.

[TnTPCGuy]

I am hoping you can help me diagnose this issue.  I am doing charity work refurbishing old donated computers to give to needy families.  Someone just brought me an HP Pavilion DV6-6110us.  When I power it on, the Caps Lock blinks (white) 2 long flashes.  Then goes to repeating cycle of 3 long flashes.  The Beep Codes are as follows (using Morse code notation) - ..       - - - ..       (again repeating the second set 3 long, 2 short).

I tried using the Virtual Assistant and couldn't figure out the problem.  And since its out of warranty I was sent to the Community.

Any assistance that anyone can provide  resolving this would be greatly appreciated.  Otherwise I will scrap this thing down for spare parts... but that would be a shame if its something relatively simple to replace because overall the laptop is in excellent condition.

Thanks for your help.

[KrazyToad]

@TnTPCGuy

Welcome to HP Community

I have gone through your Post and would like to help

You could try reseating the Memory Rams in the Notebook and if the Notebook has 2 Rams, try using one ram at a time in each slot and check if the Notebook boots up

If the issue persists it would be a Hardware problem and you need to check with the local store for repair options since this is an older model

1) Click on this link - www.hp.com/contacthp/ 
2) Select your product type below.
3) Enter the serial of your device. 
4) Select the country from the drop-down. 
5) Select the chat or get phone number options based on your preferences. 
6) Fill the web-form and proceed further.

Thank you

If the information I've provided was helpful, give us some reinforcement by clicking the "Solution Accepted" on this Post and it will also help other community members with similar issue.
 

[pallavi_praveen]

@KrazyToad : Thank you so much for guiding @TnTPCGuy.

Hope the issue will be resolved upon contacting the support teams.

@TnTPCGuy : Thanks for reaching out to us. Please do let us know once the issue is fixed.

[pallavi_praveen]

@jannaham Thank you so much. Glad that the steps helped you to resolve the issue

[pallavi_praveen]

@idavidred - I am glad that the article helped you to fix the issue. Thanks for your feedback.

[vinni157]

@Pallavi_praveen when i turn on my laptop the light that is on the power button turns on but thats it nothing else happens.

[pallavi_praveen]

@vinni157 Sorry that your unable to follow the steps. Request to you contact our Customer care for further assistance.

[Emir95]

Please help, probook 470 g5 does not turn on after hibernation mode. The screen does not turn on, does not blink. How to wake up from sleep mode?

[pallavi_praveen]

@Emir95 : Sorry that your unable to follow the steps. Request to you contact our Customer care for further assistance.