Is this look like a bad screen or can I check the cable?

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HP EliteBook 840 G5

The newest generation of the EliteBook 840 model. The EliteBook 840 G5 is a business-oriented laptop manufactured by HP in 2018.

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Nick @nick

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发帖于: 2022年2月2日

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Is this look like a bad screen or can I check the cable?

This machine was given to me by someone who was scrapping the ones they cannot fix themselves from someone who retired it due to old age and this issue. It's average and a few years old with some of the RAM stripped (as well as the SSD), so it's gonna need some help. Normally this person tries but this machine was too needy for them to fix so I got it because they know I can deal with needy systems. I can kind of see why having an 8250U. This isn't a bad chip, but it's also on the lower end even being 8th gen 4C/8T.

I was told it may have a unknown BIOS password but it's clean :-). I was just going to use it for parts otherwise but knowing the BIOS is clear makes it potentially fixable. I'm just going to replace the keyboard due to the fact several keys are shiny, one of the domes are missing and the scissor hinges are missing.

Is this look like something I can reseat the cable on, or am I going to need a new LCD panel/used assembly?

@oldturkey03 it won't work :(. And it's IVO so it has that cursed SV panel. I'm dumping the assembly and going to a normal IPS panel.

Keyboard is swapped out. Different part numbers but thankfully on these it doesn't matter since the PRIV keyboard can be interchanged on SV delete machines and factory non-SV.

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@oldturkey03 @danj

Pretty sure the screen is toast but what do you think? I can see about replacing the cable but it may be futile.

由 Nick 完成的 2022年2月2日

Screen bleed? The buttons can be replaced easily.

由 NR26 完成的 2022年2月2日

@nytryder26 It's missing a rubber dome so I need a keyboard like it or not. That said I have a SV keyboard I can move F2 to and quickly replace it.

This is a non SV notebook and will stay that way. The key is inert if you delete it so I shouldn't have an issue putting a SV keyboard on a non SV notebook.

由 Nick 完成的 2022年2月2日

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oldturkey03 @oldturkey03

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@nick looks like a bad screen. Very unlikely to be a bad cable.

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I think I have a compatible screen to just put in it (LG IPS). I'll need to check it for compatibility, but it's probably fine since this is non SV and was like that from the factory.

Oh well; I was hoping for a miracle.

由 Nick 完成的 2022年2月2日

@nick since you've got the parts might as well give it a try.

由 oldturkey03 完成的 2022年2月2日

@oldturkey03 Tbh these are a bit of a pain since you need to remove the hinge cap (which means taking the assembly off of the chassis) but I mean worst case scenario I need to buy a screen assembly and the repair is $0 if it works out. It's not a 10 minute job.

由 Nick 完成的 2022年2月2日

@oldturkey03 I took a brief look at it on lunch. It may not work with my spare panel but I also couldn't spend too much time checking.

As painful as swapping the raw panel is 840 screens aren't cheap. Since this one is mine to keep I'll try it and see otherwise I need a screen or used assembly. I know what they can do with the 85/8650U i7 but it may be a very easy fix.

由 Nick 完成的 2022年2月2日

@nick at least its a solid screen with solid hinges.

由 oldturkey03 完成的 2022年2月2日

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@oldturkey03 @danj

Pretty sure the screen is toast but what do you think? I can see about replacing the cable but it may be futile. — Nick
@nytryder26 It's missing a rubber dome so I need a keyboard like it or not. That said I have a SV keyboard I can move F2 to and quickly replace it.

This is a non SV notebook and will stay that way. The key is inert if you delete it so I shouldn't have an issue putting a SV keyboard on a non SV notebook. — Nick
I think I have a compatible screen to just put in it (LG IPS). I'll need to check it for compatibility, but it's probably fine since this is non SV and was like that from the factory.

Oh well; I was hoping for a miracle. — Nick
@nick since you've got the parts might as well give it a try. — oldturkey03
@oldturkey03 Tbh these are a bit of a pain since you need to remove the hinge cap (which means taking the assembly off of the chassis) but I mean worst case scenario I need to buy a screen assembly and the repair is $0 if it works out. It's not a 10 minute job. — Nick
@oldturkey03 I took a brief look at it on lunch. It may not work with my spare panel but I also couldn't spend too much time checking.

As painful as swapping the raw panel is 840 screens aren't cheap. Since this one is mine to keep I'll try it and see otherwise I need a screen or used assembly. I know what they can do with the 85/8650U i7 but it may be a very easy fix. — Nick

Nick @nick 声誉积分: 88.9千 199 261 144 · Answer 1 · 2022-02-13T01:46:37-07:00

This is how I ended up repairing this laptop — i bought a used non SureView screen assembly. I have nothing against SureView being an option, but the viewing angle reduction compared to a normal IPS screen and my heightened sensitivity to flicker (which is an unfixable issue with the feature) is why I deleted it.

If you're not sensitive to it go for trying to keep it intact, if you can find the panel at a reasonable price (it happens as I’ve seen it but still — $115 for a 1080p panel? You gotta be kidding me to pay that much but thanks to the IVO monopoly you have no choice. I can buy 2-3 NORMAL screens for the same money as raw panels). For me the flicker is a huge deal breaker to keeping it when the panel fails. The problem is it uses a nonstandard control scheme (read: not PWM), so it flickers bad enough I need to reduce the brightness to 80% or less on “intact” machines. Doesn't totally nerf the already reduced angle screen but it makes it worse. If HP told me that I need to pay $250 for the 4K panel from the factory to not have it *at all*, they got me.

HP EliteBook 840 G5

Is this look like a bad screen or can I check the cable?

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