Question Help with replacing the display cable on HP Elitebook Revolve 810 G2 ?

[Marky000]

Hello

I am trying to repair my client's laptop which is an Elitebook Revolve 810 G2. Please see image for symptoms:

https://imgur.com/MGhe0uI

View: https://imgur.com/MGhe0uI


I have purchased a replacement display cable on Ebay that looks like this:

https://imgur.com/HBQ7LSN

View: https://imgur.com/HBQ7LSN
. Seller was only able to verify it works with G1 model.

Before going through the very involved disassembly steps on Page 60 from Maintenance and Service Guide: http://h10032.www1.hp.com/ctg/Manual/c04055028, I wanted to verify that the cable is indeed compatible with the display assembly.

However, I have had a very hard time even opening up the display assembly . Please see attached image:

https://imgur.com/bbdFGnw

View: https://imgur.com/bbdFGnw
. I have removed the 4 screws holding rear cover to back of display but I cannot detach the screen from the rear cover. Do I need to use something like a spudger to pry it out? Risk of damage? Will adhesive need to be re-applied?

Looking at the following listings, it does seem that the screen can be detached from the rear cover:

Complete display assembly: https://www.ebay.com/itm/174689817262?hash=item28ac5312ae:g:6ScAAOSwagpgUvRT

Display only (with rear cover removed): https://www.ebay.com/itm/154593206303?hash=item23fe79201f:g:JgAAAOSwsWhhL6Xu

Back cover only: https://notebookparts.com/hp-elitebook-revolve-810-g1-g2-lcd-back-cover-34-4xf02-xxx-604ox1/

So please advise me on how I can dismantle the screen assembly. Thanks

 

[Lutfij]

In order to get the underside of that hinge/mechanism where the ribbon cable passes through, you will need to disassemble most of the underside as shown in this video

If you're asking how to remove the bezel/lip around the display then yes you're going to need a spudger to pry them apart but please be careful not to damage the display. If you get any signs of resistance, then a heat gun might be in order but you're going to have to feel your way through the removal/disassembly process.

 

[Marky000]

If you're asking how to remove the bezel/lip around the display then yes you're going to need a spudger to pry them apart

Yes, that is exactly what I am talking about. I haven't been able to watch any videos on doing that safely. Tried working with it upside down to see if it kind of falls out slowly with gravity but not really working. If a heat gun is required, that tells me it is secured with an adhesive, which then leads to the question of does it rely on adhesive to be secured.

Having a closer look at the ebay listing with the display only (case removed), the cable I have does appear to be a correct fit, based on its appearance.

 

[ilian359]

What you have started, is completely useless. The cable cannot spoil only half of the image. See examples of faulty screens here. You need a screen replacement. Since it is a hard to disassemble model, I would recommend to search for a complete screen on eBay or Aliexpress. I can see there are cheap used ones on eBay from USA, so it is a good option if you can order from there.

 

[Marky000]

What you have started, is completely useless. The cable cannot spoil only half of the image. See examples of faulty screens here. You need a screen replacement. Since it is a hard to disassemble model, I would recommend to search for a complete screen on eBay or Aliexpress. I can see there are cheap used ones on eBay from USA, so it is a good option if you can order from there.

Well maybe. I had considered that. I ordered the cable before I had seen the unit because it was cheap and was going to take like 6 weeks from China. While I agree that half of the screen points more to the LCD itself, the symptoms in that part of the screen are very similar to what happens with a bad cable or pinching cable. The client did also mention that the issue could be resolved (temporarily) by slanting the screen in a different position or rotating screen etc.

 

[Marky000]

Further developments. I started moving the screen around in many different positions and got the following image at a 170 degree angle:

https://imgur.com/f8Ldc1u

View: https://imgur.com/f8Ldc1u


And then this image at around 120 degree angle:

https://imgur.com/uOXTxGq

View: https://imgur.com/uOXTxGq


Also had the image perfect at 90 degrees but eventually the split screen returned to this:

https://imgur.com/aWR3sez

View: https://imgur.com/aWR3sez

 

[ilian359]

This happens, because you twist the screen when rotating the entire top part. When twisting it, the interrupted internal connections are affected. So yes, it is a cable problem, but this cable is inside the screen and is not repairable.

 

[Marky000]

This happens, because you twist the screen when rotating the entire top part. When twisting it, the interrupted internal connections are affected. So yes, it is a cable problem, but this cable is inside the screen and is not repairable.

I didn't twist, just set the screen flat. I believe it is repairable based on photos. You can see the cable I have is a direct match. My only concern is that I will somehow need to glue/attach the screen back in place.

The ebay listings I linked to prove that the assembly can be dismantled.

 

[ilian359]

You will just waste your time. In this cable there are no separate wires for left or right half of the screen. When cable is faulty, entire image goes bad.

 

[ex_bubblehead]

You will just waste your time. In this cable there are no separate wires for left or right half of the screen. When cable is faulty, entire image goes bad.

In this case you are the one that is incorrect. This is a display cable issue. It's either one or more loose/broken wires or a loose connector at one end or the other. Seen it hundreds of times over the years. Given all the bending/twisting the cable has to go through I'd wager muchly that it's broken wires right at the pivot. And yeah, the display panel is glued to the shell. Gentle heat and prying with a piece of thin plastic (and LOTS of patience) will be required. This isn't a fast fix.

 

[ilian359]

I hope Marky000 will report the result of replacing the cable.

 

[Marky000]

In this case you are the one that is incorrect. This is a display cable issue. It's either one or more loose/broken wires or a loose connector at one end or the other. Seen it hundreds of times over the years. Given all the bending/twisting the cable has to go through I'd wager muchly that it's broken wires right at the pivot. And yeah, the display panel is glued to the shell. Gentle heat and prying with a piece of thin plastic (and LOTS of patience) will be required. This isn't a fast fix.

I don't have a heat gun but I guess I could borrow a hair dryer from someone. I have one of those tiny plastic pizza cutters I use to remove iMac screens. Thinking that should work.

What is the recommended way to glue the screen back in place? I have some of those doubles-sided strips for iMac screens but iMac design may be different. The strips sit behind the screen so it easy to apply. If for this laptop, the glue is applied to side of screen, that will be more tricky.

I will be doing this probably in next few days. Didn't want to start doing this until I have a couple of days I can throw at it.

 

[ex_bubblehead]

If you use a hair dryer you will almost certainly destroy the display panel. A hair dryer doesn't put out enough heat to do the job properly and the extra time required to get the glue softened will heat the display panel to the point of destruction. Quite honestly, if you have to ask these types of questions then this is not something you should be attempting, especially if this is for a client. This is not a project for a first timer.