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‎08-06-2022 07:03 AM

HP Recommended
Operating System: Microsoft Windows 11

Customer brought back computer with no signs of life.. when plugged in no lights.. even on charging port.. no lights.. under further troubleshooting of components.. i realized lights only came on when screen was detached from motherboard.. use HDMI cable and computer is booting normally.. this is a new computer somewhat.. customer only just bought it  1month ago.. sealed in box. Im writing this thread so other people can have a idea.. the possibility.. plus i would like some feed back from HP as well.. 

Category:
6 REPLIES 6

‎08-06-2022 07:13 AM - edited ‎08-06-2022 07:14 AM

HP Recommended

Hello @ultimatumlight 

 

@ultimatumlight wrote:

 i realized lights only came on when screen was detached from motherboard.. 

! Attention !

The connection between motherboard and screen may only be disconnected if <charger and battery> have been disconnected ! If the battery was not disconnected, you risk a short circuit damage to the screen board ! This error often happens and makes a repair even more expensive ! If you do not know this you are not a professional.

 

In your case: Service is required !
- The computer should be disassembled and checked.
- [Always recommended] Thermal paste for CPU GPU and bridges must be renewed
- [Always recommended] The function of the fan(s) must be checked

- Short circuit test

- Screen ribon cable check

- Screen check/replace

- Charger/battery test

- Components test

- General cleaning ...

 

Good luck

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‎08-06-2022 07:44 AM

HP Recommended

Yes i thought it would have been common sense that the power should be disconnected sorry for not giving step by step.. and yes all components have been checked.. all i need is a screen to test if its the board on the screen it self.. has gone bad and stopping the computer from powering on. 

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‎08-06-2022 07:47 AM

HP Recommended

Hello @ultimatumlight 

 

To help you I need to know the product number (p/n) of your notebook !

 

You will find this information on the back/rear of your notebook in small alphanumeric letters.

The product number (p/n) is legally allowed information about the computer. This is not sensitive data.

It is allowed to publish it in public.

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‎08-06-2022 08:02 AM - last edited on ‎08-06-2022 09:06 AM by Retired

HP Recommended

Product ID: 4J8C8UA#ABA.

SN:[Personal Information Removed]

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‎08-06-2022 08:05 AM

HP Recommended

Please edit your previous post and remove serial number, it's not allowed here, I only asked for product number (p/n) !

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‎08-06-2022 08:14 AM - edited ‎08-06-2022 08:28 AM

HP Recommended

Hello @ultimatumlight 

 

Download -> Maintenance and Service Guide

Page 21 Display assembly subcomponents

Page 22 Chapter 3 Illustrated parts catalog

 

HD = HD ready

FHD = Full HD

TOP = touch on panel

 

See HP spare part number:

 

ub6424_0-1659795087312.png

 

Get display panel here:

https://partsurfer.hp.com/

or compatible replacement panel (internet)

 

For me the case is closed...

 

Good luck

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